SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2275 / length of data axis 1

NAXIS2 = 2275 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-09-28T11:14:37' / UTC date that FITS file was created

DATE-OBS= '2024-09-27T23:04:28.311535' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI533MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'EQMod Mount' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 537 / Camera focal length

CCD-TEMP= -10 / CCD temp in C

SET-TEMP= -10 / Temperature setting in C

EXPTIME = 120 / Exposure time [s]

STACKCNT= 29 / Stack frames

LIVETIME= 3480 / Exposure time after deadtime correction

EXPSTART= 2.46058e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46058e+006 / Exposure end time (standard Julian date)

FILTER = 'Starless' / Active filter name

IMAGETYP= 'Light ' / Type of image

CVF = 0.994093 / Conversion factor (e-/adu)

GAIN = 101 / Camera gain

OFFSET =

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 6248 / length of data axis 1

NAXIS2 = 4176 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-08-28T00:32:55' / UTC date that FITS file was created

DATE-OBS= '2024-08-27T20:11:42.431000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Duo' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

CCD-TEMP= -6.8 / CCD temp in C

EXPTIME = 180 / Exposure time [s]

STACKCNT= 36 / Stack frames

LIVETIME= 6480 / Exposure time after deadtime correction

EXPSTART= 2.46055e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46055e+06 / Exposure end time (standard Julian date)

GAIN = 100 / Camera gain

OFFSET = 50 / Camera offset

HISTORY median stacking without rejection, additive+scaling normalized input (fa

HISTORY Neutralisation du fond du ciel

HISTORY SCNR (type=neutre moyen, qté=1.00, préserve=true)

HISTORY SCNR (type=neutre moyen, qté=1.00, préserve=true)

HISTORY Filtre médian (filtre=3x3 px)

HISTORY Transf. histogramme (mid=0.001, lo=0.000, hi=1.000)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1064 / length of data axis 1

NAXIS2 = 1388 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-09-01T10:23:40' / UTC date that FITS file was created

DATE-OBS= '2024-08-31T20:19:50.742000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Duo' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 2 / Camera binning mode

YBINNING= 2 / Camera binning mode

CCD-TEMP= -14.5 / CCD temp in C

EXPTIME = 180 / Exposure time [s]

STACKCNT= 11 / Stack frames

LIVETIME= 1980 / Exposure time after deadtime correction

EXPSTART= 2.46055e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46055e+06 / Exposure end time (standard Julian date)

GAIN = 104 / Camera gain

OFFSET = 50 / Camera offset

HISTORY median stacking without rejection, additive+scaling normalized input (fa

HISTORY Recadrage (x=800, y=8, w=1128, h=1399)

HISTORY Neutralisation du fond du ciel

HISTORY SCNR (type=neutre moyen, qté=1.00, préserve=true)

HISTORY Déconvolution

HISTORY Rehaussement de la saturation (quantité=0.30)

HISTORY Transf. histogramme (mid=0.001, lo=0.000, hi=0.903)

HISTORY Recadrage (x=63, y=5, w=1064, h=1388)

HISTORY CLAHE (taille=8, clip=2.41)

HISTORY Filtre médian (filtre=3x3 px)

HISTORY Filtre médian (filtre=3x3 px)

HISTORY Débruitage NL-Bayes (mod=1.000, CC activée)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 5401 / length of data axis 1

NAXIS2 = 3569 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-08-19T22:54:15' / UTC date that FITS file was created

DATE-OBS= '2024-08-19T06:19:06.905610' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Canon EOS 6D' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'ZWO AM5 ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 6.54 / X pixel size microns

YPIXSZ = 6.54 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 249 / Camera focal length

CCD-TEMP= 25 / CCD temp in C

EXPTIME = 180 / Exposure time [s]

STACKCNT= 30 / Stack frames

LIVETIME= 5400 / Exposure time after deadtime correction

EXPSTART= 2.46054e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46054e+06 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

RA = 313.263 / Image center Right Ascension (deg)

DEC = 31.1925 / Image center Declination (deg)

CRPIX1 = 3081.19 / Axis1 reference pixel

CRPIX2 = 1262.5 / Axis2 reference pixel

CRVAL1 = 312.019 / Axis1 reference value (deg)

CRVAL2 = 30.5954 / Axis2 reference value (deg)

CDELT1 = 0.00150808 / X pixel size (deg)

CDELT2 = 0.00150925 / Y pixel size (deg)

PC1_1 = 0.00240007 / Linear transformation matrix (1, 1)

PC1_2 = 1.00078 / Linear transformation matrix (1, 2)

PC2_1 = -0.99922 / Linear transformation matrix (2, 1)

PC2_2 = 0.00172211 / Linear transformation matrix (2, 2)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1559 / length of data axis 1

NAXIS2 = 1934 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-10-26T17:04:13' / UTC date that FITS file was created

DATE-OBS= '2024-10-24T17:33:20.561000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'QHY168C ' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Evolux62ED + red 0,9X' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 4.8 / X pixel size microns

YPIXSZ = 4.8 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 362.945 / Camera focal length

CCD-TEMP= -10.1 / CCD temp in C

SET-TEMP= -10 / Temperature setting in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 180 / Stack frames

LIVETIME= 5400 / Exposure time after deadtime correction

EXPSTART= 2.46061e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46061e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'LIGHT ' / Type of image

OBJECT = 'C/2023 A3 (Tsuchinshan-ATLAS)' / Name of the object of interest

GAIN = 10 / Camera gain

OFFSET = 50 / Camera offset

SITELAT = 47.8461 / [deg] Observation site latitude

SITELONG= 100 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '17 15 35.555' / Image center Right Ascension (hms)

OBJCTDEC= '+03 14 14.689' / Image center Declination (dms)

RA = 258.898 / Image center Right Ascension (deg)

DEC = 3.23741 / Image center Declination (deg)

CRPIX1 = 843 / Axis1 reference pixel

CRPIX2 = 500.5 / Axis2 reference pixel

CRVAL1 = 258.898 / Axis1 reference value (deg)

CRVAL2 = 3.23741 / Axis2 reference value (deg)

CDELT1 = -0.000757641 / X pixel size (deg)

CDELT2 = 0.000757849 / Y pixel size (deg)

PC1_1 = 0.378279 / Linear transformation matrix (1, 1)

PC1_2 = -0.925786 / Linear transformation matrix (1, 2)

PC2_1 = 0.925437 / Linear transformation matrix (2, 1)

PC2_2 = 0.378673 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

AIRMASS = 1.90199 / Airmass

HISTORY Recadrage (x=401, y=316, w=4092, h=2897)

HISTORY Extraction du gradient (Correction : Subtraction)

HISTORY Photométrie

HISTORY Transformation asinh : (stretch= 16.9, bp=0.00100)

HISTORY Transf. histogramme (mid=0.028, lo=0.024, hi=1.000)

HISTORY SCNR (type=neutre moyen, qté=1.00, préserve=true)

HISTORY Rehaussement de la saturation (quantité=0.30)

HISTORY Filtre médian (filtre=3x3 px)

HISTORY Recadrage (x=1203, y=15, w=1559, h=1934)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 5496 / length of data axis 1

NAXIS2 = 3670 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-07-09T19:54:32' / UTC date that FITS file was created

DATE-OBS= '2024-07-08T21:57:08' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Canon EOS 6D' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 6.55 / X pixel size microns

YPIXSZ = 6.55 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 200 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

EXPTIME = 60.4 / Exposure time [s]

STACKCNT= 49 / Stack frames

LIVETIME= 2951.9 / Exposure time after deadtime correction

EXPSTART= 2.4605e+06 / Exposure start time (standard Julian date)

EXPEND = 2.4605e+06 / Exposure end time (standard Julian date)

APERTURE= 5.6 / Aperture of the instrument

ISOSPEED= 3200 / ISO camera setting

HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3

HISTORY .000), additive+scaling normalized input, normalized output, no image we

HI

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4256 / length of data axis 1

NAXIS2 = 2848 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-08-02T15:27:24' / UTC date that FITS file was created

INSTRUME= 'Sony Alpha-A7S (Control)' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'EQMod Mount' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 8.4 / X pixel size microns

YPIXSZ = 8.4 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 545.822 / Camera focal length

EXPTIME = 30 / Exposure time [s]

STACKCNT= 50 / Stack frames

LIVETIME= 1500 / Exposure time after deadtime correction

EXPSTART= 2.46052e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46052e+06 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '18 03 23.480' / Image center Right Ascension (hms)

OBJCTDEC= '-24 26 50.566' / Image center Declination (dms)

RA = 270.848 / Image center Right Ascension (deg)

DEC = -24.4474 / Image center Declination (deg)

CRPIX1 = 2128 / Axis1 reference pixel

CRPIX2 = 1424 / Axis2 reference pixel

CRVAL1 = 270.848 / Axis1 reference value (deg)

CRVAL2 = -24.4474 / Axis2 reference value (deg)

CDELT1 = -0.000881787 / X pixel size (deg)

CDELT2 = 0.000881677 / Y pixel size (deg)

PC1_1 = -0.0193256 / Linear transformation matrix (1, 1)

PC1_2 = 0.999695 / Linear transformation matrix (1, 2)

PC2_1 = -0.999938 / Linear transformation matrix (2, 1)

PC2_2 = -0.0190134 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1272 / length of data axis 1

NAXIS2 = 848 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2025-09-23T20:10:51' / UTC date that FITS file was created

DATE-OBS= '2025-09-20T18:41:00' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Nikon Z 7' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 4.34 / X pixel size microns

YPIXSZ = 4.34 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

CCD-TEMP= 0 / CCD temp in C

SET-TEMP= 0 / Temperature setting in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 139 / Stack frames

LIVETIME= 4170 / Exposure time after deadtime correction

EXPSTART= 2.46094e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46094e+006 / Exposure end time (standard Julian date)

ISOSPEED= 320 / ISO camera setting

HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3

HISTORY .000), additive+scaling normalized input, unnormalized output, no image

HISTORY weighting, unequalized RGB

HISTORY Recadrage (x=3159, y=2426, w=1809, h=1206)

HISTORY Recadrage (x=3097, y=2739, w=1272, h=848)

HISTORY SCNR (type=neutre moyen, qt =1.00, pr serve=true)

HISTORY Transf. histogramme (mid=0.380, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.168, hi=1.000)

HISTORY Transf. histogramme (mid=0.378, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.153, hi=1.000)

HISTORY Transf. histogramme (mid=0.341, lo=0.103, hi=1.000)

HISTORY Transf. histogramme (mid=0.346, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.413, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.449, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.172, hi=1.000)

HISTORY Transf. histogramme (mid=0.416, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.139, hi=1.000)

HISTORY Transf. histogramme (mid=0.406, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.098, hi=1.000)

HISTORY Transf. histogramme (mid=0.407, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.085, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.042, hi=1.000)

HISTORY Transf. histogramme (mid=0.417, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.029, hi=1.000)

HISTORY SCNR (type=neutre moyen, qt =1.00, pr serve=true)

HISTORY Transformation ondelettes

HISTORY Transf. histogramme (mid=0.454, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.037, hi=1.000)

HISTORY Rehaussement de la saturation (quantit =0.99)

HISTORY Neutralisation du fond du ciel

HISTORY Neutralisation du fond du ciel

HISTORY Neutralisation du fond du ciel

HISTORY Extraction du gradient (Correction : Subtraction)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = 20 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3008 / length of data axis 1

NAXIS2 = 3008 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-HI = 65535 / Upper visualization cutoff

MIPS-LO = 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2025-07-30T11:48:00' / UTC date that FITS file was created

DATE-OBS= '2025-07-29T23:39:27.735000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI533MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'T200surAstrophysique' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 880 / Camera focal length

CCD-TEMP= -15 / CCD temp in C

SET-TEMP= -15 / Temperature setting in C

EXPTIME = 180 / Exposure time [s]

STACKCNT= 16 / Stack frames

LIVETIME= 2880 / Exposure time after deadtime correction

EXPSTART= 2.46089e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46089e+006 / Exposure end time (standard Julian date)

FILTER = 'L ' / Active filter name

IMAGETYP= 'LIGHT ' / Type o

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3840 / length of data axis 1

NAXIS2 = 2160 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

PROGRAM = 'Siril 1.4.0-beta2' / Software that created this HDU

DATE = '2025-07-03T19:19:08' / UTC date that FITS file was created

DATE-OBS= '2025-07-01T21:14:18.470414' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

EXPTIME = 9. / [s] Exposure time duration

FOCALLEN= 715.264 / [mm] Focal length

CENTALT = 15.5882043517 / [deg] Altitude of telescope

CENTAZ = 190.821463366 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 2.9 / [um] Pixel X axis size

YPIXSZ = 2.9 / [um] Pixel Y axis size

INSTRUME= 'ZWO ASI585MC' / Instrument name

CCD-TEMP= 26.4 / [degC] CCD temperature

GAIN = 252 / Sensor gain

OFFSET = 50 / Sensor gain offset

CVF = 0.5619 / [e-/ADU] Electrons per A/D unit

STACKCNT= 80 / Stack frames

LIVETIME= 720. / [s] Exposure time after deadtime correction

EXPSTART= 2460858.38125159 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460858.39017505 / [JD]

www.acordeons.org www.livetime.it www.acordeons.it

SIMPLE = T / file does conform to FITS standard

BITPIX = 20 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3008 / length of data axis 1

NAXIS2 = 3008 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-HI = 65535 / Upper visualization cutoff

MIPS-LO = 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2025-07-26T10:46:22' / UTC date that FITS file was created

DATE-OBS= '2025-07-24T18:24:08.873000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ASI Camera (1) (ASCOM)' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'T200surAstrophysique' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 845 / Camera focal length

CCD-TEMP= -15 / CCD temp in C

SET-TEMP= -15 / Temperature setting in C

EXPTIME = 180 / Exposure time [s]

STACKCNT= 20 / Stack frames

LIVETIME= 3600 / Exposure time after deadtime correction

EXPSTART= 2.46088e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46088e+006 / Exposure end time (standard Julian date)

FILTER = 'H ' / Active filter name

IMAGETYP= 'LIGHT ' / Ty

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2892 / length of data axis 1

NAXIS2 = 2169 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

MIPS-HI = 4000 / Lower visualization cutoff

MIPS-LO = 215 / Upper visualization cutoff

PROGRAM = 'Siril 1.4.0' / Software that created this HDU

DATE = '2026-01-14T00:04:53' / UTC date that FITS file was created

DATE-OBS= '2025-12-27T02:01:51' / YYYY-MM-DDThh🇲🇲ss observation start, UT

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

EXPTIME = 15. / [s] Exposure time duration

ISOSPEED= 1600. / ISO camera setting

FOCALLEN= 226.928110871453 / [mm] Focal length

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 3.92 / [um] Pixel X axis size

YPIXSZ = 3.92 / [um] Pixel Y axis size

INSTRUME= 'Nikon D3400' / Instrument name

STACKCNT= 46 / Stack frames

LIVETIME= 690. / [s] Exposure time after deadtime correction

EXPSTART= 2461036.58113426 / [JD] Exposure start time (standard Julian date)

EXPEND = 2461036.60459491 / [JD] Exposure end time (standard Julian date)

OBJCTRA = '05 35 8.225' / [H M S] Image center Right Ascension

OBJCTDEC= '-05 30 40.010' / [D M S] Image center Declination

RA = 83.7842722250895 / [deg] Image center Right Ascension

DEC = -5.51111388994018 / [deg] Image center Declination

CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions

CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000. / Equatorial equinox

CRPIX1 = 1394.5 / Axis1 reference pixel

CRPIX2 = 1071.5 / Axis2 reference pixel

CRVAL1 = 83.8177543468415 / [deg] Axis1 reference value

CRVAL2 = -5.55250596235226 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000989306430387967 / [deg] X pixel size

CDELT2 = 0.000990170284319365 / [deg] Y pixel size

PC1_1 = 0.802676596014906 / Linear transformation matrix (1, 1)

PC1_2 = -0.596414522131984 / Linear transformation matrix (1, 2)

PC2_1 = 0.595289570731209 / Linear transformation matrix (2, 1)

PC2_2 = 0.80351124881899 / Linear transformation matrix (2, 2)

A_ORDER = 3 / SIP polynomial degree, axis 1, pixel-to-sky

A_0_0 = 0.

A_1_0 = 0.

A_0_1 = 0.

A_2_0 = -4.93489173294213E-08

A_1_1 = 1.11830378031708E-08

A_0_2 = -1.41730754133384E-07

A_3_0 = -5.34525691201136E-10

A_2_1 = 2.76812790653271E-11

A_1_2 = -4.90996751624932E-10

A_0_3 = -3.45936004468162E-11

B_ORDER = 3 / SIP polynomial degree, axis 2, pixel-to-sky

B_0_0 = 0.

B_1_0 = 0.

B_0_1 = 0.

B_2_0 = -1.17258491984864E-07

B_1_1 = 2.57777584392607E-08

B_0_2 = -1.43987392974842E-07

B_3_0 = 1.29410679554835E-11

B_2_1 = -5.02466893707924E-10

B_1_2 = -1.92912825922488E-11

B_0_3 = -5.38967338578509E-10

AP_ORDER= 3 / SIP polynomial degree, axis 1, sky-to-pixel

AP_0_0 = -0.000969173096092511

AP_1_0 = -3.9666647779546E-05

AP_0_1 = 4.6437732590657E-06

AP_2_0 = 5.07723011037237E-08

AP_1_1 = -1.09716249290308E-08

AP_0_2 = 1.42325537101753E-07

AP_3_0 = 5.47097781340501E-10

AP_2_1 = -2.91001952938902E-11

AP_1_2 = 5.04771235826583E-10

AP_0_3 = 3.37953609348375E-11

BP_ORDER= 3 / SIP polynomial degree, axis 2, sky-to-pixel

BP_0_0 = -0.00364690678064475

BP_1_0 = 2.78092101492267E-06

BP_0_1 = -2.95442575520832E-05

BP_2_0 = 1.19387902939475E-07

BP_1_1 = -2.69493139782841E-08

BP_0_2 = 1.4704802429622E-07

BP_3_0 = -1.34570969714376E-11

BP_2_1 = 5.14589186833104E-10

BP_1_2 = 1.82683638747184E-11

BP_0_3 = 5.49536255144199E-10

PLTSOLVD= T

HISTORY Hintergrundextraktion (Korrektur: Subtraction)

HISTORY Beschneiden (x=1614, y=910, w=2892, h=2169)

HISTORY Photometrische Farbkalibrierung (Algorithmus: PCC)

HISTORY SCNR (Typ=Durchschnittlich neutral, St rke=1.00, Erhaltung=true)

HISTORY Asinh Transformation: (stretch= 1.0, bp=0.00100)

HISTORY Histogramm- bertragungen. (Mitte=0.000, lo=0.003, hi=1.000)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 6024 / length of data axis 1

NAXIS2 = 4022 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-12-25T00:54:27' / UTC date that FITS file was created

DATE-OBS= '2024-10-04T01:02:42.254000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Canon EOS 750D' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 3.7 / X pixel size microns

YPIXSZ = 3.7 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 385.045 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

SET-TEMP= 0 / Temperature setting in C

EXPTIME = 180.3 / Exposure time [s]

STACKCNT= 310 / Stack frames

LIVETIME= 55860.4 / Exposure time after deadtime correction

EXPSTART= 2.46059e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46059e+06 / Exposure end time (standard Julian date)

FILTER = 'Starless' / Active filter name

APERTURE= 5.6 / Aperture of the instrument

ISOSPEED= 800 / ISO camera setting

CTYPE1 = 'RA---TAN' / Coordinate type

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1542 / length of data axis 1

NAXIS2 = 2163 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-02-18T07:00:00' / UTC date that FITS file was created

DATE-OBS= '2024-02-14T12:55:11.304618' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Sony Alpha-A7S (Control)' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'EQMod Mount' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 8.4 / X pixel size microns

YPIXSZ = 8.4 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 544.179 / Camera focal length

EXPTIME = 30 / Exposure time [s]

STACKCNT= 60 / Stack frames

LIVETIME= 1800 / Exposure time after deadtime correction

EXPSTART= 2.46036e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46036e+06 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '05 35 4.011' / Image center Right Ascension (hms)

OBJCTDEC= '-05 20 55.049' / Image center Declination (dms)

RA = 83.7667 / Image center Right Ascension (deg)

DEC = -5.34862 / Image center Declination (deg)

CRPIX1 = 771 / Axis1 reference pixel

CRPIX2 = 1081.5 / Axis2 reference pixel

CRVAL1 = 83.7667 / Axis1 reference value (deg)

CRVAL2 = -5.34862 / Axis2 reference value (deg)

CDELT1 = -0.00088444 / X pixel size (deg)

CDELT2 = 0.000884403 / Y pixel size (deg)

PC1_1 = 0.999872 / Linear transformation matrix (1, 1)

PC1_2 = 0.0159451 / Linear transformation matrix (1, 2)

PC2_1 = -0.0159708 / Linear transformation matrix (2, 1)

PC2_2 = 0.999873 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

HISTORY Histogram Transf. (mid=0.365, lo=0.020, hi=1.000)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 772 / length of data axis 1

NAXIS2 = 759 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-10-18T15:21:46' / UTC date that FITS file was created

DATE-OBS= '2024-04-27T00:42:48.735197' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Seestar S50' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Seestar S50' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 2.9 / X pixel size microns

YPIXSZ = 2.9 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

BAYERPAT= 'GRBG ' / Bayer color pattern

FOCALLEN= 251.807 / Camera focal length

CCD-TEMP= 11.25 / CCD temp in C

EXPTIME = 10 / Exposure time [s]

STACKCNT= 60328 / Stack frames

LIVETIME= 503320 / Exposure time after deadtime correction

EXPSTART= 2.46043e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46051e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

OBJECT = 'NGC 6888' / Name of the object of interest

GAIN = 80 / Camera gain

SITELAT = 53.074 / [deg] Observation site latitude

SITELONG= -1.28785 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '20 12 15.915' / Image center Right Ascension (hms)

OBJCTDEC= '+38 20 0.520' / Image center Declination (dms)

RA = 303.066 / Image center Right Ascension (deg)

DEC = 38.3335 / Image center Declination (deg)

CRPIX1 = 386 / Axis1 reference pixel

CRPIX2 = 379.5 / Axis2 reference pixel

CRVAL1 = 303.066 / Axis1 reference value (deg)

CRVAL2 = 38.3335 / Axis2 reference value (deg)

CDELT1 = -0.000659872 / X pixel size (deg)

CDELT2 = 0.000659851 / Y pixel size (deg)

PC1_1 = 0.76508 / Linear transformation matrix (1, 1)

PC1_2 = 0.643935 / Linear transformation matrix (1, 2)

PC2_1 = -0.643996 / Linear transformation matrix (2, 1)

PC2_2 = 0.765028 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4144 / length of data axis 1

NAXIS2 = 2822 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-08-04T07:25:50' / UTC date that FITS file was created

DATE-OBS= '2024-07-27T03:44:49.076000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'SVBONY SV405CC' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Celestron 80ED' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 4.63 / X pixel size microns

YPIXSZ = 4.63 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 613.421 / Camera focal length

CCD-TEMP= 0.9 / CCD temp in C

SET-TEMP= 1 / Temperature setting in C

EXPTIME = 300 / Exposure time [s]

STACKCNT= 28 / Stack frames

LIVETIME= 8400 / Exposure time after deadtime correction

EXPSTART= 2.46052e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46052e+006 / Exposure end time (standard Julian date)

IMAGETYP= 'LIGHT ' / Type of image

OBJECT = 'Pelican Nebula' / Name of the object of interest

GAIN = 120 / Camera gain

OFFSET = 1 / Camera offset

SITELAT = 42.7335 / [deg] Observation site latitude

SITELONG= -84.5468 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '20 51 2.605' / Image center Right Ascension (hms)

OBJCTDEC= '+44 07 47.556' / Image center Declination (dms)

RA = 312.761 / Image center Right Ascension (deg)

DEC = 44.1299 / Image center Declination (deg)

CRPIX1 = 2072 / Axis1 reference pixel

CRPIX2 = 1411 / Axis2 reference pixel

CRVAL1 = 312.761 / Axis1 reference value (deg)

CRVAL2 = 44.1299 / Axis2 reference value (deg)

CDELT1 = -0.000432434 / X pixel size (deg)

CDELT2 = 0.000432483 / Y pixel size (deg)

PC1_1 = -0.442738 / Linear transformation matrix (1, 1)

PC1_2 = -0.896624 / Linear transformation matrix (1, 2)

PC2_1 = 0.89655 / Linear transformation matrix (2, 1)

PC2_2 = -0.442997 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

AIRMASS = 1.05414 / Airmass

HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3

HISTORY .000), additive+scaling normalized input, normalized output, no image we

HISTORY ighting, unequalized RGB

HISTORY Photometric CC

HISTORY GHS pivot: 0.002, amount: 298.80, local: 0.00 [0.00 1.00]

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2727 / length of data axis 1

NAXIS2 = 2914 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

MIPS-HI = 65535 / Lower visualization cutoff

PROGRAM = 'Siril 1.4.0-beta3' / Software that created this HDU

DATE = '2025-09-07T15:54:45' / UTC date that FITS file was created

DATE-OBS= '2025-09-06T21:50:05.809000' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light Frame' / Type of image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

EXPTIME = 180. / [s] Exposure time duration

TELESCOP= 'Slywatcher Evolux 62 ED 400@F\6.5' / Telescope used to acquire this i

FOCALLEN= 362.507 / [mm] Focal length

CENTALT = 39.89957 / [deg] Altitude of telescope

CENTAZ = 32.74331 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 4.8 / [um] Pixel X axis size

YPIXSZ = 4.8 / [um] Pixel Y axis size

INSTRUME= 'QHY CCD QHY168C-f3c2994' / Instrument name

CCD-TEMP= -10. / [degC] CCD temperature

GAIN = 10 / Sensor gain

OFFSET = 50 / Sensor gain offset

STACKCNT= 91 / Stack frames

LIVETIME= 16380. / [s] Exposure time after deadtime correction

EXPSTART= 2460925.38793968 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460925.63782278 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M 31 ' / Name of the object of interest

AIRMASS = 1.557501 / Airmass at frame center (Gueymard 1993)

SITELAT = 47.91667 / [deg] Observation site latitude

SITELONG= 1.933056 / [deg] Observation site longitude

OBJCTRA = '00 42 30.672' / [H M S] Image center Right Ascension

OBJCTDEC= '+41 12 22.659' / [D M S] Image center Declination

RA = 10.6277982528625 / [deg] Image center Right Ascension

DEC = 41.2062942758214 / [deg] Image center Declination

CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions

CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000. / Equatorial equinox

CRPIX1 = 1364. / Axis1 reference pixel

CRPIX2 = 1457.5 / Axis2 reference pixel

CRVAL1 = 10.6277982528625 / [deg] Axis1 reference value

CRVAL2 = 41.2062942758214 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000758721053819356 / [deg] X pixel size

CDELT2 = 0.000758599487695311 / [deg] Y pixel size

PC1_1 = -0.336820836673126 / Linear transformation matrix (1, 1)

PC1_2 = -0.941568756906693 / Linear transformation matrix (1, 2)

PC2_1 = 0.941480486837379 / Linear transformation matrix (2, 1)

PC2_2 = -0.337067490132841 / Linear transformation matrix (2, 2)

A_ORDER = 3 / SIP polynomial degree, axis 1, pixel-to-sky

A_0_0 = 0.

A_1_0 = 0.

A_0_1 = 0.

A_2_0 = 3.97578917841809E-07

A_1_1 = -2.44774798826953E-08

A_0_2 = 9.22941238005915E-08

A_3_0 = -1.12035964590002E-09

A_2_1 = 5.12191944642339E-12

A_1_2 = -1.1009892822829E-09

A_0_3 = 3.73598524888844E-13

B_ORDER = 3 / SIP polynomial degree, axis 2, pixel-to-sky

B_0_0 = 0.

B_1_0 = 0.

B_0_1 = 0.

B_2_0 = 1.19579208308998E-07

B_1_1 = 2.91051781005884E-07

B_0_2 = 1.02802639174333E-07

B_3_0 = -1.3611124041332E-11

B_2_1 = -1.07757308897139E-09

B_1_2 = 1.73284258110139E-12

B_0_3 = -1.1172753794729E-09

AP_ORDER= 3 / SIP polynomial degree, axis 1, sky-to-pixel

AP_0_0 = 0.000988225551640077

AP_1_0 = -1.24879495848607E-05

AP_0_1 = 1.15890752822243E-07

AP_2_0 = -4.025349097176E-07

AP_1_1 = 2.41075310703775E-08

AP_0_2 = -9.34493958401128E-08

AP_3_0 = 1.13489542756861E-09

AP_2_1 = -5.25179707652799E-12

AP_1_2 = 1.11750286044444E-09

AP_0_3 = -4.17413704041954E-13

BP_ORDER= 3 / SIP polynomial degree, axis 2, sky-to-pixel

BP_0_0 = 0.000952212066372248

BP_1_0 = 3.76735565828782E-07

BP_0_1 = -1.33797912759137E-05

BP_2_0 = -1.21044688351177E-07

BP_1_1 = -2.9451504048561E-07

BP_0_2 = -1.04667173896164E-07

BP_3_0 = 1.36872185686008E-11

BP_2_1 = 1.09420708095768E-09

BP_1_2 = -1.93156721119263E-12

BP_0_3 = 1.13223326583511E-09

PLTSOLVD= T / Siril internal solver

HISTORY Rotation (-90.0deg, recadrage=TRUE, clamp =TRUE)

HISTORY Rotation (180.0deg, recadrage=TRUE, clamp =TRUE)

HISTORY GraXpert AI BGE: subtraction

HISTORY Extraction du gradient (Correction : Subtraction)

HISTORY R solution astrom trique

HISTORY Photom trie CC (algorithme : PCC)

HISTORY Transformation asinh : (stretch= 4.0, bp=0.00000)

HISTORY Transf. histogramme (mid=0.004, lo=0.018, hi=1.000)

HISTORY D bruitage NL-Bayes (mod=0.800, SOS activ (iters=3, rho=0.200), CC

HISTORY Filtre m dian (filtre=3x3 px)

HISTORY Rehaussement de la saturation (quantit =0.30)

HISTORY Rehaussement de la saturation (quantit =0.30)

FRAME = 'Light ' / Frame Type

APTDIA = 6.200E+01 / Telescope diameter (mm)

SCALE = 2.750667E+00 / arcsecs per pixel

PIERSIDE= 'WEST ' / West, looking East

RADECSYS= 'FK5 ' / RADECSYS

SECPIX1 = 2.7506667760E+00 / SECPIX1

SECPIX2 = 2.7506667760E+00 / SECPIX2

COMMENT Generated by INDI

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3732 / length of data axis 1

NAXIS2 = 2028 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

MIPS-HI = 65535 / Lower visualization cutoff

PROGRAM = 'Siril 1.4.0-beta3' / Software that created this HDU

DATE = '2025-09-20T14:10:47' / UTC date that FITS file was created

DATE-OBS= '2025-09-19T19:53:48.120346' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

EXPTIME = 60. / [s] Exposure time duration

TELESCOP= 'EQMod Mount' / Telescope used to acquire this image

FILTER = 'mixed_Starless' / Active filter name

FOCALLEN= 137. / [mm] Focal length

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 2.90000009536743 / [um] Pixel X axis size

YPIXSZ = 2.90000009536743 / [um] Pixel Y axis size

INSTRUME= 'ZWO ASI585MM Pro' / Instrument name

CCD-TEMP= -9.89999961853027 / [degC] CCD temperature

SET-TEMP= -10. / [degC] CCD temperature setpoint

GAIN = 100 / Sensor gain

OFFSET = 15 / Sensor gain offset

CVF = 2.97254085540771 / [e-/ADU] Electrons per A/D unit

FOCPOS = 9521 / [step] Focuser position

STACKCNT= 80 / Stack frames

LIVETIME= 4800. / [s] Exposure time after deadtime correction

EXPSTART= 2460938.32015236 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460938.38491547 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M 31 ' / Name of the object of interest

SITELAT = 51.6553 / [deg] Observation site latitude

SITELONG= -0.0751393 / [deg] Observation site longitude

OBJCTRA = '00 42 44.822' / [H M S] Image center Right Ascension

OBJCTDEC= '+41 16 10.926' / [D M S] Image center Declination

RA = 10.6867588333452 / [deg] Image center Right Ascension

DEC = 41.2697017938427 / [deg] Image center Declination

HISTORY Crop (x=64, y=70, w=3732, h=2028)

HISTORY SCNR (type=average neutral, amount=1.00, preserve=true)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1080 / length of data axis 1

NAXIS2 = 1920 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-09-12T18:17:38' / UTC date that FITS file was created

DATE-OBS= '2024-07-27T01:39:37.730940' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Seestar S50' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Seestar S50' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 2.9 / X pixel size microns

YPIXSZ = 2.9 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 251.834 / Camera focal length

CCD-TEMP= 19.3125 / CCD temp in C

EXPTIME = 10 / Exposure time [s]

STACKCNT= 1066 / Stack frames

LIVETIME= 10660 / Exposure time after deadtime correction

EXPSTART= 2.46052e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46057e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

OBJECT = 'M 45 ' / Name of the object of interest

APERTURE= 5 / Aperture of the instrument

GAIN = 80 / Camera gain

SITELAT = 53.074 / [deg] Observation site latitude

SITELONG= -1.28808 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '03 46 11.739' / Image center Right Ascension (hms)

OBJCTDEC= '+24 10 38.653' / Image center Declination (dms)

RA = 56.5489 / Image center Right Ascension (deg)

DEC = 24.1774 / Image center Declination (deg)

CRPIX1 = 540 / Axis1 reference pixel

CRPIX2 = 960 / Axis2 reference pixel

CRVAL1 = 56.5489 / Axis1 reference value (deg)

CRVAL2 = 24.1774 / Axis2 reference value (deg)

CDELT1 = -0.000659731 / X pixel size (deg)

CDELT2 = 0.00065985 / Y pixel size (deg)

PC1_1 = 0.741703 / Linear transformation matrix (1, 1)

PC1_2 = 0.670728 / Linear transformation matrix (1, 2)

PC2_1 = -0.670644 / Linear transformation matrix (2, 1)

PC2_2 = 0.74178 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3834 / length of data axis 1

NAXIS2 = 2562 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-09-06T12:38:52' / UTC date that FITS file was created

DATE-OBS= '2024-09-05T19:43:41.437000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'QHY168C ' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Evolux62ED + red 0,9X' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 4.8 / X pixel size microns

YPIXSZ = 4.8 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 362.655 / Camera focal length

CCD-TEMP= -10.1 / CCD temp in C

SET-TEMP= -10 / Temperature setting in C

EXPTIME = 240 / Exposure time [s]

STACKCNT= 72 / Stack frames

LIVETIME= 17280 / Exposure time after deadtime correction

EXPSTART= 2.46056e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46056e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'LIGHT ' / Type of image

OBJECT = 'NGC 6888' / Name of the object of interest

GAIN = 10 / Camera gain

OFFSET = 50 / Camera offset

SITELAT = 47.845 / [deg] Observation site latitude

SITELONG= -2.0375 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '20 12 5.262' / Image center Right Ascension (hms)

OBJCTDEC= '+38 22 15.860' / Image center Declination (dms)

RA = 303.022 / Image center Right Ascension (deg)

DEC = 38.3711 / Image center Declination (deg)

CRPIX1 = 1917 / Axis1 reference pixel

CRPIX2 = 1281 / Axis2 reference pixel

CRVAL1 = 303.022 / Axis1 reference value (deg)

CRVAL2 = 38.3711 / Axis2 reference value (deg)

CDELT1 = -0.000758382 / X pixel size (deg)

CDELT2 = 0.000758321 / Y pixel size (deg)

PC1_1 = 0.604125 / Linear transformation matrix (1, 1)

PC1_2 = 0.79689 / Linear transformation matrix (1, 2)

PC2_1 = -0.796928 / Linear transformation matrix (2, 1)

PC2_2 = 0.604075 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

AIRMASS = 1.0276 / Airmass

END

DATE = '2024-05-22T13:45:06' / UTC date that FITS file was created

DATE-OBS= '2024-05-22T06:53:24.543261' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI294MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'DayStar Solar Scout 60mm' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 4.63 / X pixel size microns

YPIXSZ = 4.63 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

CCD-TEMP= -10 / CCD temp in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 98 / Stack frames

LIVETIME= 2940 / Exposure time after deadtime correction

EXPSTART= 2.46045e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46045e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

GAIN = 121 / Camera gain

OFFSET = 5 / Camera offset

OBJCTRA = '20 00 42.000' / Image center Right Ascension (hms)

OBJCTDEC= '+22 47 00.000' / Image center Declination (dms)

RA = 300.175 / Image center Right Ascension (deg)

DEC = 22.7833 / Image center Declination (deg)

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2160 / length of data axis 1

NAXIS2 = 3840 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-11-11T07:41:06' / UTC date that FITS file was created

DATE-OBS= '2024-10-30T18:55:23.037967' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Seestar S50' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Seestar S50' / telescope used to acquire this image

XPIXSZ = 1.45 / X pixel size microns

YPIXSZ = 1.45 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 252.016 / Camera focal length

CCD-TEMP= 26.0625 / CCD temp in C

EXPTIME = 10 / Exposure time [s]

STACKCNT= 65 / Stack frames

LIVETIME= 650 / Exposure time after deadtime correction

EXPSTART= 2.46061e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46061e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

OBJECT = 'M 33 ' / Name of the object of interest

APERTURE= 5 / Aperture of the instrument

GAIN = 80 / Camera gain

SITELAT = 47.0431 / [deg] Observation site latitude

SITE

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 816 / length of data axis 1

NAXIS2 = 1753 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-02-17T14:08:20' / UTC date that FITS file was created

DATE-OBS= '2024-02-14T12:55:11.304618' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Sony Alpha-A7S (Control)' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'EQMod Mount' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 8.4 / X pixel size microns

YPIXSZ = 8.4 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 544.173 / Camera focal length

EXPTIME = 30 / Exposure time [s]

STACKCNT= 60 / Stack frames

LIVETIME= 1800 / Exposure time after deadtime correction

EXPSTART= 2.46036e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46036e+06 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '05 34 50.874' / Image center Right Ascension (hms)

OBJCTDEC= '-05 22 1.856' / Image center Declination (dms)

RA = 83.712 / Image center Right Ascension (deg)

DEC = -5.36718 / Image center Declination (deg)

CRPIX1 = 408 / Axis1 reference pixel

CRPIX2 = 876.5 / Axis2 reference pixel

CRVAL1 = 83.712 / Axis1 reference value (deg)

CRVAL2 = -5.36718 / Axis2 reference value (deg)

CDELT1 = -0.000884289 / X pixel size (deg)

CDELT2 = 0.000884573 / Y pixel size (deg)

PC1_1 = 0.999874 / Linear transformation matrix (1, 1)

PC1_2 = 0.0159308 / Linear transformation matrix (1, 2)

PC2_1 = -0.0158466 / Linear transformation matrix (2, 1)

PC2_2 = 0.999873 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

DATE = '2024-04-01T12:45:50' / UTC date that FITS file was created

DATE-OBS= '2024-03-30T03:21:43.528866' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI294MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'ZWO AM5 ' / telescope used to acquire this image

XPIXSZ = 4.63 / X pixel size microns

YPIXSZ = 4.63 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 350.292 / Camera focal length

CCD-TEMP= -10 / CCD temp in C

SET-TEMP= -10 / Temperature setting in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 38 / Stack frames

LIVETIME= 1140 / Exposure time after deadtime correction

EXPSTART= 2.4604e+006 / Exposure start time (standard Julian date)

EXPEND = 2.4604e+006 / Exposure end time (standard Julian date)

FILTER = 'UVIR ' / Active filter name

IMAGETYP= 'Light ' / Type of image

CVF = 1.00224 / Conversion factor (e-/adu)

GAIN = 120 / Camera gain

OFFSET = 30 / Camera offset

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '14 01 47.614' / Image center Right Ascension (hms)

OBJCTDEC= '+54 22 59.127' / Image center Declination (dms)

RA = 210.448 / Image center Right Ascension (deg)

DEC = 54.3831 / Image center Declination (deg)

CRPIX1 = 1649 /

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 5492 / length of data axis 1

NAXIS2 = 3596 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-12-29T22:53:58' / UTC date that FITS file was created

DATE-OBS= '2024-12-29T21:00:30' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Canon EOS R6m2' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 3.72 / X pixel size microns

YPIXSZ = 3.72 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 424.071 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

SET-TEMP= 0 / Temperature setting in C

EXPTIME = 20 / Exposure time [s]

STACKCNT= 44 / Stack frames

LIVETIME= 1095 / Exposure time after deadtime correction

EXPSTART= 2.46067e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46067e+06 / Exposure end time (standard Julian date)

APERTURE= 10 / Aperture of the instrument

ISOSPEED= 1600 / ISO camera setting

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coord

SIMPLE = T / file does conform to FITS standard

BITPIX = 20 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3008 / length of data axis 1

NAXIS2 = 3008 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2025-07-23T12:16:37' / UTC date that FITS file was created

DATE-OBS= '2025-07-19T18:27:39.765000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ASI Camera (1) (ASCOM)' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'T200surAstrophysique' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 845 / Camera focal length

CCD-TEMP= -15.1 / CCD temp in C

SET-TEMP= -15 / Temperature setting in C

EXPTIME = 180 / Exposure time [s]

STACKCNT= 23 / Stack frames

LIVETIME= 4140 / Exposure time after deadtime correction

EXPSTART= 2.46088e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46088e+006 / Exposure end time (standard Julian date)

FILTER = 'H_Starless' / Active filter name

IMAGETYP= 'LIGHT ' / Type of image

OBJECT = 'NGC 3372' / Name of the object of interest

CVF = 0.318 / Conversion

SIMPLE = T / file does conform to FITS standard

BITPIX = 16 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1588 / length of data axis 1

NAXIS2 = 1116 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

PROGRAM = 'Siril 1.4.0-beta4' / Software that created this HDU

DATE = '2025-11-02T14:00:06' / UTC date that FITS file was created

DATE-OBS= '2025-07-20T19:25:19.582997' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

EXPTIME = 60. / [s] Exposure time duration

FILTER = 'mixed ' / Active filter name

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 4.78000020980835 / [um] Pixel X axis size

YPIXSZ = 4.78000020980835 / [um] Pixel Y axis size

INSTRUME= 'ZWO ASI071MC Pro' / Instrument name

CCD-TEMP= -7.3 / [degC] CCD temperature

GAIN = 200 / Sensor gain

OFFSET = 8 / Sensor gain offset

STACKCNT= 200 / Stack frames

LIVETIME= 12000. / [s] Exposure time after deadtime correction

EXPSTART= 2460877.30925442 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460877.37931293 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M8 & M20' / Name of the object of interest

JD_UTC = 2460877.309601655 / Julian Date at mid exposure

DATE-AVG= '2025-07-2

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4234 / length of data axis 1

NAXIS2 = 2498 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-10-07T16:38:41' / UTC date that FITS file was created

DATE-OBS= '2024-10-04T03:28:26.317000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'QHY168C ' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Evolux62ED + red 0,9X' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 4.8 / X pixel size microns

YPIXSZ = 4.8 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 362.708 / Camera focal length

CCD-TEMP= -10.1 / CCD temp in C

SET-TEMP= -10 / Temperature setting in C

EXPTIME = 300 / Exposure time [s]

STACKCNT= 68 / Stack frames

LIVETIME= 20400 / Exposure time after deadtime correction

EXPSTART= 2.46059e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46059e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'LIGHT ' / Type of image

OBJECT = 'IC 434 ' / Name of the object of interest

GAIN = 10 / Camera gain

OFFSET = 50 / Camera offset

SITELAT = 47.8461 / [deg] Observation site latitude

SITELONG= 100 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '05 41 40.641' / Image center Right Ascension (hms)

OBJCTDEC= '-02 13 54.268' / Image center Declination (dms)

RA = 85.4193 / Image center Right Ascension (deg)

DEC = -2.23174 / Image center Declination (deg)

CRPIX1 = 2117 / Axis1 reference pixel

CRPIX2 = 1249 / Axis2 reference pixel

CRVAL1 = 85.4193 / Axis1 reference value (deg)

CRVAL2 = -2.23174 / Axis2 reference value (deg)

CDELT1 = -0.000758162 / X pixel size (deg)

CDELT2 = 0.000758319 / Y pixel size (deg)

PC1_1 = -0.397443 / Linear transformation matrix (1, 1)

PC1_2 = 0.917627 / Linear transformation matrix (1, 2)

PC2_1 = -0.917601 / Linear transformation matrix (2, 1)

PC2_2 = -0.397502 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

AIRMASS = 1.61771 / Airmass

HISTORY Filtre médian (filtre=3x3 px)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 6212 / length of data axis 1

NAXIS2 = 4143 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-12-22T09:50:48' / UTC date that FITS file was created

DATE-OBS= '2024-10-29T18:59:03.717732' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'EQMod Mount' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 298.464 / Camera focal length

CCD-TEMP= -14.6 / CCD temp in C

SET-TEMP= -15 / Temperature setting in C

EXPTIME = 120 / Exposure time [s]

STACKCNT= 20 / Stack frames

LIVETIME= 2400 / Exposure time after deadtime correction

EXPSTART= 2.46061e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46061e+06 / Exposure end time (standard Julian date)

IMAGETYP= 'Light ' / Type of image

OBJECT = 'M31 ' / Name of the object of interest

CVF = 0.242863 / Conversion factor (e-/adu)

GAIN = 100 / Camera gain

OFFSET = 50 / Camera offset

SITELAT = 45.7459 / [deg] Observation site latitude

SITELONG= 4.52224 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '00 42 49.968' / Image center Right Ascension (hms)

OBJCTDEC= '+41 15 22.762' / Image center Declination (dms)

RA = 10.7082 / Image center Right Ascension (deg)

DEC = 41.2563 / Image center Declination (deg)

CRPIX1 = 3106 / Axis1 reference pixel

CRPIX2 = 2071.5 / Axis2 reference pixel

CRVAL1 = 10.7082 / Axis1 reference value (deg)

CRVAL2 = 41.2563 / Axis2 reference value (deg)

CDELT1 = -0.000721849 / X pixel size (deg)

CDELT2 = 0.000721755 / Y pixel size (deg)

PC1_1 = 0.0754831 / Linear transformation matrix (1, 1)

PC1_2 = 0.997147 / Linear transformation matrix (1, 2)

PC2_1 = -0.997149 / Linear transformation matrix (2, 1)

PC2_2 = 0.0754563 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3

HISTORY .000), additive+scaling normalized input, normalized output, no image we

HISTORY ighting, equalized RGB

HISTORY TOP-DOWN mirror

HISTORY Recadrage (x=13, y=17, w=6212, h=4143)

HISTORY Recadrage (x=13, y=17, w=6212, h=4143)

HISTORY Extraction du gradient (Correction : Subtraction)

HISTORY Photométrie

HISTORY Transformation asinh : (stretch= 108.9, bp=0.00000)

HISTORY Transformation asinh : (stretch= 55.9, bp=0.00000)

HISTORY Transf. histogramme (mid=0.164, lo=0.038, hi=1.000)

HISTORY Transf. histogramme (mid=0.603, lo=0.031, hi=1.000)

HISTORY Photométrie

HISTORY Neutralisation du fond du ciel

HISTORY Neutralisation du fond du ciel

HISTORY Neutralisation du fond du ciel

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1272 / length of data axis 1

NAXIS2 = 848 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2025-09-23T20:10:51' / UTC date that FITS file was created

DATE-OBS= '2025-09-20T18:41:00' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Nikon Z 7' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 4.34 / X pixel size microns

YPIXSZ = 4.34 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

CCD-TEMP= 0 / CCD temp in C

SET-TEMP= 0 / Temperature setting in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 139 / Stack frames

LIVETIME= 4170 / Exposure time after deadtime correction

EXPSTART= 2.46094e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46094e+006 / Exposure end time (standard Julian date)

ISOSPEED= 320 / ISO camera setting

HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3

HISTORY .000), additive+scaling normalized input, unnormalized output, no image

HISTORY weighting, unequalized RGB

HISTORY Recadrage (x=3159, y=2426, w=1809, h=1206)

HISTORY Recadrage (x=3097, y=2739, w=1272, h=848)

HISTORY SCNR (type=neutre moyen, qt =1.00, pr serve=true)

HISTORY Transf. histogramme (mid=0.380, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.168, hi=1.000)

HISTORY Transf. histogramme (mid=0.378, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.153, hi=1.000)

HISTORY Transf. histogramme (mid=0.341, lo=0.103, hi=1.000)

HISTORY Transf. histogramme (mid=0.346, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.413, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.449, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.172, hi=1.000)

HISTORY Transf. histogramme (mid=0.416, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.139, hi=1.000)

HISTORY Transf. histogramme (mid=0.406, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.098, hi=1.000)

HISTORY Transf. histogramme (mid=0.407, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.085, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.042, hi=1.000)

HISTORY Transf. histogramme (mid=0.417, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.029, hi=1.000)

HISTORY SCNR (type=neutre moyen, qt =1.00, pr serve=true)

HISTORY Transformation ondelettes

HISTORY Transf. histogramme (mid=0.454, lo=0.000, hi=1.000)

HISTORY Transf. histogramme (mid=0.500, lo=0.037, hi=1.000)

HISTORY Rehaussement de la saturation (quantit =0.99)

HISTORY Neutralisation du fond du ciel

HISTORY Neutralisation du fond du ciel

HISTORY Neutralisation du fond du ciel

HISTORY Extraction du gradient (Correction : Subtraction)

END

DATE-OBS= '2024-06-09T04:19:55.150013' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Pro' / instrument name

OBSERVER= 'DaveMartin' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 350.3 / Camera focal length

CCD-TEMP= -10 / CCD temp in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 62 / Stack frames

LIVETIME= 1860 / Exposure time after deadtime correction

EXPSTART= 2.46047e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46047e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

OBJECT = 'M20 (NGC 6514,Trifid Nebula)' / Name of the object of interest

GAIN = 100 / Camera gain

OFFSET = 12 / Camera offset

RA = 270.979 / Image center Right Ascension (deg)

DEC = -23.4106 / Image center Declination (deg)

AIRMASS = 2.555 / Airmass

END

SIMPLE = T / file does conform to FITS standard

BITPIX = 20 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 6248 / length of data axis 1

NAXIS2 = 4176 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2025-09-21T17:16:38' / UTC date that FITS file was created

DATE-OBS= '2025-09-21T02:24:52.537000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 1005.49 / Camera focal length

CCD-TEMP= -9.9 / CCD temp in C

EXPTIME = 60 / Exposure time [s]

STACKCNT= 90 / Stack frames

LIVETIME= 5400 / Exposure time after deadtime correction

EXPSTART= 2.46094e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46094e+006 / Exposure end time (standard Julian date)

GAIN = 100 / Camera gain

OFFSET = 50 / Camera offset

HISTORY TOP-DOWN mirror

HISTORY Extraction du gradient (Correction : Subtraction)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = 16 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1270 / length of data axis 1

NAXIS2 = 949 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

MIPS-HI = 65535 / Lower visualization cutoff

PROGRAM = 'Siril 1.4.0-beta4' / Software that created this HDU

DATE = '2025-11-06T17:06:17' / UTC date that FITS file was created

DATE-OBS= '2025-07-21T23:01:58' / YYYY-MM-DDThh🇲🇲ss observation start, UT

EXPTIME = 33.75 / [s] Exposure time duration

OBSERVER= 'Andr ' / Observer name

FILTER = 'mixed ' / Active filter name

FOCALLEN= 402.229 / [mm] Focal length

XBINNING= 2 / Camera binning mode

YBINNING= 2 / Camera binning mode

XPIXSZ = 5.40000009536743 / [um] Pixel X axis size

YPIXSZ = 5.40000009536743 / [um] Pixel Y axis size

INSTRUME= 'SBIG STF-8300 CCD Camera' / Instrument name

CCD-TEMP= -11.8687450052115 / [degC] CCD temperature

CVF = 0.37 / [e-/ADU] Electrons per A/D unit

STACKCNT= 384 / Stack frames

LIVETIME= 13140. / [s] Exposure time after deadtime correction

EXPSTART= 2460878.4287037 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460878.49541667 / [JD] Exposure end time (standard Julian date)

OBJECT = 'NGC 6334' / Name of the object of interest

AIRMASS = 1.49755428475563 / Airmass at frame center (Gueymar

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 6248 / length of data axis 1

NAXIS2 = 4176 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-08-27T00:01:00' / UTC date that FITS file was created

DATE-OBS= '2024-08-26T20:38:29.581000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Duo' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

CCD-TEMP= -20 / CCD temp in C

EXPTIME = 120 / Exposure time [s]

STACKCNT= 20 / Stack frames

LIVETIME= 2400 / Exposure time after deadtime correction

EXPSTART= 2.46055e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46055e+06 / Exposure end time (standard Julian date)

GAIN = 100 / Camera gain

OFFSET = 50 / Camera offset

HISTORY median stacking without rejection, additive+scaling normalized input (fa

HISTORY Neutralisation du fond du ciel

HISTORY SCNR (type=neutre moyen, qté=1.00, préserve=true)

HISTORY Synthetic stars: desaturate clipped stars

HISTORY Transf. histogramme (mid=0.001, lo=0.001, hi=1.000)

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1859 / length of data axis 1

NAXIS2 = 2044 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 1 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2025-01-04T10:59:10' / UTC date that FITS file was created

DATE-OBS= '2025-01-03T12:17:46' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Sony ILCE-7M3' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 5.93 / X pixel size microns

YPIXSZ = 5.93 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 337.617 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

SET-TEMP= 0 / Temperature setting in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 68 / Stack frames

LIVETIME= 2040 / Exposure time after deadtime correction

EXPSTART= 2.46068e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46068e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

APERTURE= 6.3 / Aperture of the instrument

ISOSPEED= 6400 / ISO camera setting

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '11 35 52.718' / Image center Right Ascension (hms)

OBJCTDEC= '-63 09 27.240' / Image center Declination (dms)

RA = 173.97 / Image center Right Ascension (deg)

DEC = -63.1576 / Image center Declination (deg)

CRPIX1 = 941.5 / Axis1 reference pixel

CRPIX2 = 1015.5 / Axis2 reference pixel

CRVAL1 = 173.97 / Axis1 reference value (deg)

CRVAL2 = -63.1576 / Axis2 reference value (deg)

CDELT1 = -0.0010061 / X pixel size (deg)

CDELT2 = 0.00100662 / Y pixel size (deg)

PC1_1 = -0.83959 / Linear transformation matrix (1, 1)

PC1_2 = -0.544404 / Linear transformation matrix (1, 2)

PC2_1 = 0.542942 / Linear transformation matrix (2, 1)

PC2_2 = -0.839004 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

Quick reprocess of the Andromeda Galaxy. This one shows slightly more detailed dust lanes, which circle around the galaxy along its spiral arms. Each spiral arm contains up to several hundred billion stars.

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4754 / length of data axis 1

NAXIS2 = 3125 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

MIPS-FHI= 0.98909 / Upper visualization cutoff

MIPS-FLO= 0 / Lower visualization cutoff

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-01-04T10:00:24' / UTC date that FITS file was created

DATE-OBS= '2024-01-02T05:04:58' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= ' ' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'TOP-DOWN' / Order of the rows in image array

XPIXSZ = 4.28 / X pixel size microns

YPIXSZ = 4.28 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 293.209 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

EXPTIME = 29.6 / Exposure time [s]

STACKCNT= 48 / Stack frames

LIVETIME= 2846.8 / Exposure time after deadtime correction

EXPEND = 2.46031e+06 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '00 43 39.307' / Image center Right Ascension (hms)

OBJCTDEC= '+41 11 18.172' / Image center Declination (dms)

RA = 10.9138 / Image center Right Ascension (deg)

DEC = 41.1884 / Image center Declination (deg)

CRPIX1 = 2377 / Axis1 reference pixel

CRPIX2 = 1562.5 / Axis2 reference pixel

CRVAL1 = 10.9138 / Axis1 reference value (deg)

CRVAL2 = 41.1884 / Axis2 reference value (deg)

CDELT1 = -0.000836221 / X pixel size (deg)

CDELT2 = 0.000836468 / Y pixel size (deg)

PC1_1 = -0.00657215 / Linear transformation matrix (1, 1)

PC1_2 = -1.00027 / Linear transformation matrix (1, 2)

PC2_1 = 0.999684 / Linear transformation matrix (2, 1)

PC2_2 = -0.00672207 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2145 / length of data axis 1

NAXIS2 = 3646 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-11-21T15:17:08' / UTC date that FITS file was created

DATE-OBS= '2024-10-29T22:32:24.803274' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Seestar S50' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Seestar S50' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 2.9 / X pixel size microns

YPIXSZ = 2.9 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

BAYERPAT= 'GRBG ' / Bayer color pattern

FOCALLEN= 251.89 / Camera focal length

CCD-TEMP= 17.4375 / CCD temp in C

EXPTIME = 10 / Exposure time [s]

STACKCNT= 14017 / Stack frames

LIVETIME= 200 / Exposure time after deadtime correction

EXPSTART= 2.46061e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46064e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

OBJECT = 'M 31 ' / Name of the object of interest

APERTURE= 5 / Aperture of the instrument

GAIN = 80 / Camera gain

SITELAT = 53.074 / [deg] Observation site latitude

SITELONG= -1.28801 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '00 43 0.169' / Image center Right Ascension (hms)

OBJCTDEC= '+41 12 49.174' / Image center Declination (dms)

RA = 10.7507 / Image center Right Ascension (deg)

DEC = 41.2137 / Image center Declination (deg)

CRPIX1 = 1072.5 / Axis1 reference pixel

CRPIX2 = 1823 / Axis2 reference pixel

CRVAL1 = 10.7507 / Axis1 reference value (deg)

CRVAL2 = 41.2137 / Axis2 reference value (deg)

CDELT1 = -0.000659654 / X pixel size (deg)

CDELT2 = 0.000659635 / Y pixel size (deg)

PC1_1 = 0.806118 / Linear transformation matrix (1, 1)

PC1_2 = -0.591754 / Linear transformation matrix (1, 2)

PC2_1 = 0.591793 / Linear transformation matrix (2, 1)

PC2_2 = 0.80609 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1012 / length of data axis 1

NAXIS2 = 929 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-10-11T18:22:43' / UTC date that FITS file was created

DATE-OBS= '2024-03-06T02:56:48.677418' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'Seestar S50' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Seestar S50' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 2.9 / X pixel size microns

YPIXSZ = 2.9 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 251.847 / Camera focal length

CCD-TEMP= 14.875 / CCD temp in C

EXPTIME = 10 / Exposure time [s]

STACKCNT= 1199 / Stack frames

LIVETIME= 11990 / Exposure time after deadtime correction

EXPSTART= 2.46038e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46059e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

OBJECT = 'NGC 281 ' / Name of the object of interest

APERTURE= 5 / Aperture of the instrument

GAIN = 80 / Camera gain

SITELAT = 53.074 / [deg] Observation site latitude

SITELONG= -1.28803 / [deg] Observation site longitude

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '00 53 14.842' / Image center Right Ascension (hms)

OBJCTDEC= '+56 38 47.532' / Image center Declination (dms)

RA = 13.3118 / Image center Right Ascension (deg)

DEC = 56.6465 / Image center Declination (deg)

CRPIX1 = 540 / Axis1 reference pixel

CRPIX2 = 960 / Axis2 reference pixel

CRVAL1 = 13.3118 / Axis1 reference value (deg)

CRVAL2 = 56.6465 / Axis2 reference value (deg)

CDELT1 = -0.000659835 / X pixel size (deg)

CDELT2 = 0.000659676 / Y pixel size (deg)

PC1_1 = 0.274356 / Linear transformation matrix (1, 1)

PC1_2 = 0.961628 / Linear transformation matrix (1, 2)

PC2_1 = -0.961647 / Linear transformation matrix (2, 1)

PC2_2 = 0.27429 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

HISTORY Crop (x=25, y=523, w=1012, h=929)

END

via Instagram ift.tt/1pWfDYO

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4144 / length of data axis 1

NAXIS2 = 2822 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

PROGRAM = 'Siril 1.4.0-beta3' / Software that created this HDU

DATE = '2025-09-12T07:01:06' / UTC date that FITS file was created

DATE-OBS= '2025-09-11T18:15:33.194365' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

EXPTIME = 24. / [s] Exposure time duration

TELESCOP= '130/650 PDS' / Telescope used to acquire this image

OBSERVER= 'rokalaci' / Observer name

FOCALLEN= 1000.919 / [mm] Focal length

CENTALT = 36.7614846985 / [deg] Altitude of telescope

CENTAZ = 204.470940737 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 4.63 / [um] Pixel X axis size

YPIXSZ = 4.63 / [um] Pixel Y axis size

INSTRUME= 'SVBONY SV405CC' / Instrument name

CCD-TEMP= 19.1 / [degC] CCD temperature

SET-TEMP= 1. / [degC] CCD temperature setpoint

GAIN = 330 / Sensor gain

OFFSET = 50 / Sensor gain offset

CVF = 0.0817 / [e-/ADU] Electrons per A/D unit

STACKCNT= 43 / Stack frames

LIVETIME=

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3008 / length of data axis 1

NAXIS2 = 3008 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0 / offset data range to that of unsigned short

BSCALE = 1 / default scaling factor

DATE = '2024-02-12T09:08:17' / UTC date that FITS file was created

DATE-OBS= '2024-01-14T20:58:19.653089' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI533MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'ZWO AM5 ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

XPIXSZ = 3.76 / X pixel size microns

YPIXSZ = 3.76 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 248.417 / Camera focal length

CCD-TEMP= -10 / CCD temp in C

SET-TEMP= -10 / Temperature setting in C

EXPTIME = 120 / Exposure time [s]

STACKCNT= 188 / Stack frames

LIVETIME= 22560 / Exposure time after deadtime correction

EXPSTART= 2.46032e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46033e+06 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'Light ' / Type of image

CVF = 0.994093 / Conversion factor (e-/adu)

GAIN = 101 / Camera gain

OFFSET = 70 / Camera offset

CTYPE1 = 'RA---TAN' / Coordinate type for the first axis

CTYPE2 = 'DEC--TAN' / Coordinate type for the second axis

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000 / Equatorial equinox

OBJCTRA = '02 32 42.582' / Image center Right Ascension (hms)

OBJCTDEC= '+61 27 29.478' / Image center Declination (dms)

RA = 38.1774 / Image center Right Ascension (deg)

DEC = 61.4582 / Image center Declination (deg)

CRPIX1 = 1504 / Axis1 reference pixel

CRPIX2 = 1504 / Axis2 reference pixel

CRVAL1 = 38.1774 / Axis1 reference value (deg)

CRVAL2 = 61.4582 / Axis2 reference value (deg)

CDELT1 = -0.000867234 / X pixel size (deg)

CDELT2 = 0.000867207 / Y pixel size (deg)

PC1_1 = 0.154368 / Linear transformation matrix (1, 1)

PC1_2 = 0.988013 / Linear transformation matrix (1, 2)

PC2_1 = -0.988008 / Linear transformation matrix (2, 1)

PC2_2 = 0.154404 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

HISTORY TOP-DOWN mirror

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2727 / length of data axis 1

NAXIS2 = 2914 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy

COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H

BZERO = 0. / Offset data range to that of unsigned short

BSCALE = 1. / Default scaling factor

MIPS-HI = 65535 / Lower visualization cutoff

MIPS-LO = 382 / Upper visualization cutoff

PROGRAM = 'Siril 1.4.0-beta3' / Software that created this HDU

DATE = '2025-09-07T16:04:32' / UTC date that FITS file was created

DATE-OBS= '2025-09-06T21:50:05.809000' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light Frame' / Type of image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

EXPTIME = 180. / [s] Exposure time duration

TELESCOP= 'Slywatcher Evolux 62 ED 400@F\6.5' / Telescope used to acquire this i

FILTER = 'mixed ' / Active filter name

FOCALLEN= 362.507 / [mm] Focal length

CENTALT = 39.89957 / [deg] Altitude of telescope

CENTAZ = 32.74331 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 4.8 / [um] Pixel X axis size

YPIXSZ = 4.8 / [um] Pixel Y axis size

INSTRUME= 'QHY CCD QHY168C-f3c2994' / Instrument name

CCD-TEMP= -10. / [degC] CCD temperature

GAIN = 10 / Sensor gain

OFFSET = 50 / Sensor gain offset

STACKCNT= 182 / Stack frames

LIVETIME= 32760. / [s] Exposure time after deadtime correction

EXPSTART= 2460925.38793968 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460925.63782278 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M 31 ' / Name of the object of interest

AIRMASS = 1.557501 / Airmass at frame center (Gueymard 1993)

SITELAT = 47.91667 / [deg] Observation site latitude

SITELONG= 1.933056 / [deg] Observation site longitude

OBJCTRA = '00 42 30.672' / [H M S] Image center Right Ascension

OBJCTDEC= '+41 12 22.659' / [D M S] Image center Declination

RA = 10.6277982528625 / [deg] Image center Right Ascension

DEC = 41.2062942758214 / [deg] Image center Declination

CTYPE1 = 'RA---TAN-SIP' / TAN (gnomic) projection + SIP distortions

CTYPE2 = 'DEC--TAN-SIP' / TAN (gnomic) projection + SIP distortions

CUNIT1 = 'deg ' / Unit of coordinates

CUNIT2 = 'deg ' / Unit of coordinates

EQUINOX = 2000. / Equatorial equinox

CRPIX1 = 1364. / Axis1 reference pixel

CRPIX2 = 1457.5 / Axis2 reference pixel

CRVAL1 = 10.6277982528625 / [deg] Axis1 reference value

CRVAL2 = 41.2062942758214 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000758721053819356 / [deg] X pixel size

CDELT2 = 0.000758599487695311 / [deg] Y pixel size

PC1_1 = -0.336820836673126 / Linear transformation matrix (1, 1)

PC1_2 = -0.941568756906693 / Linear transformation matrix (1, 2)

PC2_1 = 0.941480486837379 / Linear transformation matrix (2, 1)

PC2_2 = -0.337067490132841 / Linear transformation matrix (2, 2)

A_ORDER = 3 / SIP polynomial degree, axis 1, pixel-to-sky

A_0_0 = 0.

A_1_0 = 0.

A_0_1 = 0.

A_2_0 = 3.97578917841809E-07

A_1_1 = -2.44774798826953E-08

A_0_2 = 9.22941238005915E-08

A_3_0 = -1.12035964590002E-09

A_2_1 = 5.12191944642339E-12

A_1_2 = -1.1009892822829E-09

A_0_3 = 3.73598524888844E-13

B_ORDER = 3 / SIP polynomial degree, axis 2, pixel-to-sky

B_0_0 = 0.

B_1_0 = 0.

B_0_1 = 0.

B_2_0 = 1.19579208308998E-07

B_1_1 = 2.91051781005884E-07

B_0_2 = 1.02802639174333E-07

B_3_0 = -1.3611124041332E-11

B_2_1 = -1.07757308897139E-09

B_1_2 = 1.73284258110139E-12

B_0_3 = -1.1172753794729E-09

AP_ORDER= 3 / SIP polynomial degree, axis 1, sky-to-pixel

AP_0_0 = 0.000988225551640077

AP_1_0 = -1.24879495848607E-05

AP_0_1 = 1.15890752822243E-07

AP_2_0 = -4.025349097176E-07

AP_1_1 = 2.41075310703775E-08

AP_0_2 = -9.34493958401128E-08

AP_3_0 = 1.13489542756861E-09

AP_2_1 = -5.25179707652799E-12

AP_1_2 = 1.11750286044444E-09

AP_0_3 = -4.17413704041954E-13

BP_ORDER= 3 / SIP polynomial degree, axis 2, sky-to-pixel

BP_0_0 = 0.000952212066372248

BP_1_0 = 3.76735565828782E-07

BP_0_1 = -1.33797912759137E-05

BP_2_0 = -1.21044688351177E-07

BP_1_1 = -2.9451504048561E-07

BP_0_2 = -1.04667173896164E-07

BP_3_0 = 1.36872185686008E-11

BP_2_1 = 1.09420708095768E-09

BP_1_2 = -1.93156721119263E-12

BP_0_3 = 1.13223326583511E-09

FRAME = 'Light ' / Frame Type

APTDIA = 6.200E+01 / Telescope diameter (mm)

SCALE = 2.750667E+00 / arcsecs per pixel

PIERSIDE= 'WEST ' / West, looking East

RADECSYS= 'FK5 ' / RADECSYS

SECPIX1 = 2.7506667760E+00 / SECPIX1

SECPIX2 = 2.7506667760E+00 / SECPIX2

COMMENT Generated by INDI

END