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NGC7023 Iris Nebula by Hub Ciboulette

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 11900 / length of data axis 1

NAXIS2 = 7889 / 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 = '2023-07-25T20:41:46' / UTC date that FITS file was created

DATE-OBS= '2023-04-20T00:46:55' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Fujifilm X-T2' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

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

XPIXSZ = 1.96 / X pixel size microns

YPIXSZ = 1.96 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 50 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

EXPTIME = 240 / Exposure time [s]

STACKCNT= 11 / Stack frames

LIVETIME= 2640 / Exposure time after deadtime correction

APERTURE= 1 / 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

HISTORY ighting, equalized RGB

HISTORY Recadrage (x=92, y=113, w=11900, h=7889)

HISTORY Extraction du gradient (Correction : Subtraction)

HISTORY Neutralisation du fond du ciel

HISTORY talonnage des couleurs

HISTORY Transf. histogramme (mid=0.011, lo=0.223, hi=1.000)

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

HISTORY Rehaussement de la saturation (quantit =0.11)

END

M42 by Stéphane Leblond

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1505 / length of data axis 1

NAXIS2 = 2612 / 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 = '2024-03-19T07:12:43' / UTC date that FITS file was created

DATE-OBS= '2024-03-18T20:28:04' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Canon EOS 700D' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / 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= 399.254 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

SET-TEMP= 0 / Temperature setting in C

EXPTIME = 19.9 / Exposure time [s]

STACKCNT= 100 / Stack frames

LIVETIME= 1990 / Exposure time after deadtime correction

EXPSTART= 2.46039e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46039e+006 / Exposure end time (standard Julian date)

ISOSPEED= 800 / 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 = '05 35 16.661' / Image center Right Ascension (hms)

OBJCTDEC= '-05 26 21.071' / Image center Declination (dms)

RA = 83.8194 / Image center Right Ascension (deg)

DEC = -5.43919 / Image center Declination (deg)

CRPIX1 = 752.5 / Axis1 reference pixel

CRPIX2 = 1306 / Axis2 reference pixel

CRVAL1 = 83.8194 / Axis1 reference value (deg)

CRVAL2 = -5.43919 / Axis2 reference value (deg)

CDELT1 = -0.000614005 / X pixel size (deg)

CDELT2 = 0.000614415 / Y pixel size (deg)

PC1_1 = 0.992658 / Linear transformation matrix (1, 1)

PC1_2 = 0.120959 / Linear transformation matrix (1, 2)

PC2_1 = -0.120414 / Linear transformation matrix (2, 1)

PC2_2 = 0.992724 / 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 Rotation (-180.0deg, recadrage=TRUE, clamp =TRUE)

HISTORY Extraction du gradient (Correction : Subtraction)

HISTORY Photom trie

HISTORY Transformation asinh : (stretch= 50.3, bp=0.00100)

HISTORY Transf. histogramme (mid=0.018, lo=0.000, hi=1.000)

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

HISTORY Rehaussement de la saturation (quantit =0.80)

END

North American Nebula by Elizabeth Pector

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1689 / length of data axis 1

NAXIS2 = 3166 / 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 = 21711 / Upper visualization cutoff

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

FILENAME= 'Light_mosaic_NGC 7000_20.0s_LP_20250526-014127.fit'

DATE = '2025-05-26T16:24:15' / UTC date that FITS file was created

DATE-OBS= '2025-05-26T06:41:02.150919' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

EXPTIME = 20. / [s] Exposure time duration

TELESCOP= 'S50_f1c10930' / Telescope used to acquire this image

FILTER = 'mixed ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 251.83 / [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= 'Seestar S50' / Instrument name

CCD-TEMP= 17.0625 / [degC] CCD temperature

GAIN = 80 / Sensor gain

FOCPOS = 1620 / [step] Focuser position

STACKCNT= 197 / Stack frames

LIVETIME= 3940. / [s] Exposure time after deadtime correction

EXPSTART= 2460821.77849711 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460821.87932888 / [JD] Exposure end time (standard Julian date)

OBJECT = 'NGC 7000' / Name of the object of interest

SITELAT = 41.756 / [deg] Observation site latitude

SITELONG= -88.1819 / [deg] Observation site longitude

OBJCTRA = '20 58 7.346' / [H M S] Image center Right Ascension

OBJCTDEC= '+44 19 23.624' / [D M S] Image center Declination

RA = 314.530606961891 / [deg] Image center Right Ascension

DEC = 44.3232288329815 / [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 = 895.5 / Axis1 reference pixel

CRPIX2 = 1141.5 / Axis2 reference pixel

CRVAL1 = 314.592106580487 / [deg] Axis1 reference value

CRVAL2 = 44.0330294379358 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000659802746654457 / [deg] X pixel size

CDELT2 = 0.000659800551565207 / [deg] Y pixel size

PC1_1 = 0.965297511245702 / Linear transformation matrix (1, 1)

PC1_2 = 0.261152665662929 / Linear transformation matrix (1, 2)

PC2_1 = -0.261115398307382 / Linear transformation matrix (2, 1)

PC2_2 = 0.965307592825612 / 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 = -9.74063439851947E-09

A_1_1 = -3.25366176150845E-10

A_0_2 = 2.66465106494466E-10

A_3_0 = -1.20153434446517E-11

A_2_1 = 1.80289254965373E-12

A_1_2 = 1.52021593952749E-11

A_0_3 = 2.52566304775469E-12

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 = -2.7859943045886E-09

B_1_1 = -8.30877626644875E-09

B_0_2 = 2.54422083612868E-08

B_3_0 = 1.02803637639594E-11

B_2_1 = 2.06197952424513E-11

B_1_2 = -4.20223998544153E-12

B_0_3 = 5.35717259136597E-12

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

AP_0_0 = -8.83407116017409E-07

AP_1_0 = -2.11171234523969E-09

AP_0_1 = -1.8693611876812E-09

AP_2_0 = 9.74152551922136E-09

AP_1_1 = 3.28176321156856E-10

AP_0_2 = -2.65501037894396E-10

AP_3_0 = 1.2017170739467E-11

AP_2_1 = -1.80181631366394E-12

AP_1_2 = -1.52001458940546E-11

AP_0_3 = -2.52483359393872E-12

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

BP_0_0 = -4.50129317174452E-06

BP_1_0 = -8.89802043462381E-10

BP_0_1 = -2.38290078088729E-09

BP_2_0 = 2.78816732715415E-09

BP_1_1 = 8.305737175103E-09

BP_0_2 = -2.54374095652426E-08

BP_3_0 = -1.0279738664855E-11

BP_2_1 = -2.0616406271359E-11

BP_1_2 = 4.20177218037046E-12

BP_0_3 = -5.35485004051757E-12

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

HISTORY Saturation enhancement (amount=0.23)

HISTORY Saturation enhancement (amount=0.42)

HISTORY Saturation enhancement (amount=0.30)

HISTORY Saturation enhancement (amount=0.42)

HISTORY Saturation enhancement (amount=0.64)

BG-EXTR = 'GraXpert'

CBG-1 = 0.0050184443

CBG-2 = 0.0050184443

CBG-3 = 0.0050184443

INTP-OPT= 'RBF '

HIERARCH SMOOTHING = 0.9

HIERARCH CORR-TYPE = 'Subtraction'

HIERARCH SAMPLE-SIZE = 15

HIERARCH RBF-KERNEL = 'thin_plate'

HIERARCH SPLINE-ORDER = 3

BG-PTS = '[[77, 77, 1], [262, 107, 1], [447, 77, 1], [632, 77, 1], [817, &'

CONTINUE '107, 1], [1017, 92, 1], [1202, 92, 1], [1387, 92, 1], [1587, 77, &'

CONTINUE '1], [1742, 107, 1], [1957, 77, 1], [2142, 77, 1], [2297, 107, 1], &'

CONTINUE '[2497, 92, 1], [2682, 92, 1], [107, 262, 1], [292, 262, 1], [477, &'

CONTINUE '262, 1], [632, 262, 1], [847, 292, 1], [1032, 262, 1], [1217, 262, &'

CONTINUE '1], [1402, 292, 1], [1557, 292, 1], [1742, 262, 1], [1927, 262, &'

CONTINUE '1], [2142, 292, 1], [2327, 292, 1], [2497, 277, 1], [2682, 277, &'

CONTINUE '1], [107, 447, 1], [292, 477, 1], [462, 462, 1], [662, 477, 1], &'

CONTINUE '[832, 462, 1], [1002, 447, 1], [1187, 477, 1], [1372, 477, 1], &'

CONTINUE '[1587, 447, 1], [1742, 447, 1], [1957, 477, 1], [2112, 477, 1], &'

CONTINUE '[2327, 477, 1], [2497, 462, 1], [2682, 462, 1], [77, 632, 1], &'

CONTINUE '[262, 662, 1], [447, 632, 1], [632, 662, 1], [847, 632, 1], [1002, &'

CONTINUE '632, 1], [1402, 662, 1], [1557, 662, 1], [1742, 632, 1], [1927, &'

CONTINUE '662, 1], [2127, 647, 1], [2312, 647, 1], [2497, 647, 1], [2682, &'

CONTINUE '647, 1], [107, 847, 1], [277, 832, 1], [477, 847, 1], [662, 817, &'

CONTINUE '1], [817, 847, 1], [1032, 847, 1], [1217, 847, 1], [1402, 847, 1], &'

CONTINUE '[1557, 847, 1], [1742, 847, 1], [1927, 847, 1], [2142, 847, 1], &'

CONTINUE '[2297, 817, 1], [2512, 817, 1], [2682, 832, 1], [107, 1002, 1], &'

CONTINUE '[292, 1002, 1], [477, 1002, 1], [632, 1002, 1], [832, 1017, 1], &'

CONTINUE '[1002, 1002, 1], [1217, 1002, 1], [1402, 1002, 1], [1587, 1002, &'

CONTINUE '1], [1772, 1002, 1], [1957, 1032, 1], [2142, 1032, 1], [2327, &'

CONTINUE '1002, 1], [2512, 1002, 1], [2682, 1017, 1], [107, 1217, 1], [292, &'

CONTINUE '1217, 1], [447, 1217, 1], [632, 1217, 1], [847, 1217, 1], [1002, &'

CONTINUE '1187, 1], [1187, 1217, 1], [1372, 1217, 1], [1587, 1217, 1], &'

CONTINUE '[1772, 1187, 1], [1927, 1217, 1], [2112, 1187, 1], [2297, 1187, &'

CONTINUE '1], [2482, 1187, 1], [2682, 1202, 1], [107, 1372, 1], [262, 1372, &'

CONTINUE '1], [447, 1372, 1], [632, 1402, 1], [817, 1372, 1], [1002, 1372, &'

CONTINUE '1], [1187, 1372, 1], [1587, 1372, 1], [1772, 1402, 1], [1927, &'

CONTINUE '1372, 1], [2142, 1402, 1], [2297, 1402, 1], [2482, 1402, 1], &'

CONTINUE '[2682, 1387, 1], [77, 1557, 1], [262, 1557, 1], [447, 1587, 1], &'

CONTINUE '[662, 1587, 1], [817, 1557, 1], [1032, 1557, 1], [1372, 1557, 1], &'

CONTINUE '[1557, 1557, 1], [1742, 1587, 1], [1927, 1557, 1], [2112, 1587, &'

CONTINUE '1], [2297, 1557, 1], [2482, 1587, 1], [2682, 1572, 1], [77, 1772, &'

CONTINUE '1], [262, 1772, 1], [462, 1757, 1], [662, 1772, 1], [1187, 1742, &'

CONTINUE '1], [1400.5570032573287, 1763.0032573289905, 1.0], [1587, 1772, &'

CONTINUE '1], [1742, 1742, 1], [1927, 1742, 1], [2142, 1742, 1], [2297, &'

CONTINUE '1742, 1], [2482, 1742, 1], [2682, 1757, 1], [77, 1957, 1], [292, &'

CONTINUE '1927, 1], [447, 1927, 1], [632, 1927, 1], [1217, 1957, 1], [1402, &'

CONTINUE '1927, 1], [1587, 1957, 1], [1772, 1957, 1], [1957, 1957, 1], &'

CONTINUE '[2142, 1957, 1], [2297, 1927, 1], [2482, 1957, 1], [2682, 1942, &'

CONTINUE '1], [77, 2142, 1], [277, 2127, 1], [447, 2112, 1], [662, 2112, 1], &'

CONTINUE '[817, 2142, 1], [1217, 2112, 1], [1372, 2142, 1], [1557, 2112, 1], &'

CONTINUE '[1742, 2142, 1], [1957, 2142, 1], [2112, 2142, 1], [2297, 2142, &'

CONTINUE '1], [2482, 2112, 1], [2682, 2127, 1], [77, 2297, 1], [292, 2327, &'

CONTINUE '1], [447, 2297, 1], [662, 2297, 1], [847, 2327, 1], [1032, 2297, &'

CONTINUE '1], [1402, 2327, 1], [1557, 2327, 1], [1742, 2327, 1], [1957, &'

CONTINUE '2297, 1], [2112, 2297, 1], [2327, 2297, 1], [2482, 2297, 1], &'

CONTINUE '[2682, 2312, 1], [92, 2497, 1], [292, 2482, 1], [477, 2482, 1], &'

CONTINUE '[662, 2512, 1], [847, 2512, 1], [1032, 2512, 1], [1402, 2482, 1], &'

CONTINUE '[1557, 2482, 1], [1772, 2512, 1], [1927, 2482, 1], [2112, 2482, &'

CONTINUE '1], [2312, 2497, 1], [2512, 2482, 1], [2667, 2512, 1], [92, 2682, &'

CONTINUE '1], [292, 2697, 1], [477, 2667, 1], [632, 2697, 1], [847, 2667, &'

CONTINUE '1], [1002, 2697, 1], [1202, 2682, 1], [1372, 2667, 1], [1587, &'

CONTINUE '2697, 1], [1957, 2697, 1], [2142, 2667, 1], [2327, 2667, 1], &'

CONTINUE '[2497, 2682, 1], [2697, 2667, 1], [92, 2867, 1], [292, 2852, 1], &'

CONTINUE '[462, 2867, 1], [647, 2867, 1], [817, 2852, 1], [1002, 2882, 1], &'

CONTINUE '[1187, 2882, 1], [1372, 2852, 1], [2112, 2882, 1], [2312, 2867, &'

CONTINUE '1], [2482, 2852, 1], [2697, 2882, 1], [92, 3052, 1], [262, 3037, &'

CONTINUE '1], [477, 3067, 1], [662, 3067, 1], [817, 3037, 1], [1032, 3067, &'

CONTINUE '1], [1772, 3067, 1], [1942, 3052, 1], [2142, 3037, 1], [2297, &'

CONTINUE '3067, 1], [2497, 3052, 1], [2697, 3067, 1], [92, 3237, 1], [262, &'

CONTINUE '3252, 1], [477, 3252, 1], [662, 3222, 1], [847, 3252, 1], [1017, &'

CONTINUE '3237, 1], [1217, 3252, 1], [1772, 3222, 1], [1957, 3252, 1], &'

CONTINUE '[2142, 3252, 1], [2327, 3222, 1], [2482, 3222, 1], [2667, 3222, &'

CONTINUE '1], [92, 3422, 1], [277, 3422, 1], [462, 3422, 1], [662, 3437, 1], &'

CONTINUE '[817, 3437, 1], [1002, 3437, 1], [1187, 3407, 1], [1957, 3407, 1], &'

CONTINUE '[2112, 3407, 1], [2327, 3437, 1], [2482, 3437, 1], [2682, 3422, &'

CONTINUE '1], [92, 3607, 1], [262, 3622, 1], [447, 3622, 1], [632, 3622, 1], &'

CONTINUE '[817, 3592, 1], [1032, 3622, 1], [1372, 3592, 1], [1957, 3622, 1], &'

CONTINUE '[2112, 3592, 1], [2327, 3592, 1], [2512, 3592, 1], [2667, 3592, &'

CONTINUE '1], [92, 3792, 1], [262, 3777, 1], [477, 3777, 1], [662, 3777, 1], &'

CONTINUE '[832, 3792, 1], [1002, 3807, 1], [1217, 3777, 1], [1372, 3807, 1], &'

CONTINUE '[1772, 3777, 1], [1927, 3807, 1], [2112, 3777, 1], [2297, 3777, &'

CONTINUE '1], [2497, 3792, 1], [2667, 3807, 1], [92, 3977, 1], [277, 3977, &'

CONTINUE '1], [447, 3962, 1], [647, 3977, 1], [817, 3992, 1], [1002, 3992, &'

CONTINUE '1], [1187, 3992, 1], [1387, 3977, 1], [1572, 3977, 1], [1772, &'

CONTINUE '3962, 1], [1957, 3962, 1], [2112, 3992, 1], [2297, 3962, 1], &'

CONTINUE '[2482, 3962, 1], [2697, 3992, 1], [92, 4162, 1], [277, 4162, 1], &'

CONTINUE '[447, 4177, 1], [662, 4177, 1], [847, 4177, 1], [1017, 4162, 1], &'

CONTINUE '[1187, 4147, 1], [1402, 4147, 1], [1587, 4177, 1], [1772, 4177, &'

CONTINUE '1], [1957, 4177, 1], [2112, 4177, 1], [2297, 4177, 1], [2512, &'

CONTINUE '4177, 1], [2667, 4177, 1], [92, 4347, 1], [277, 4347, 1], [447, &'

CONTINUE '4362, 1], [632, 4362, 1], [817, 4362, 1], [1017, 4347, 1], [1217, &'

CONTINUE '4332, 1], [1402, 4362, 1], [1557, 4362, 1], [1772, 4362, 1], &'

CONTINUE '[1927, 4332, 1], [2112, 4362, 1], [2297, 4362, 1], [2497, 4347, &'

CONTINUE '1], [2667, 4332, 1], [92, 4532, 1], [277, 4532, 1], [477, 4547, &'

CONTINUE '1], [662, 4547, 1], [817, 4547, 1], [1017, 4532, 1], [1187, 4517, &'

CONTINUE '1], [1402, 4517, 1], [1587, 4547, 1], [1772, 4517, 1], [1957, &'

CONTINUE '4547, 1], [2112, 4547, 1], [2327, 4547, 1], [2497, 4532, 1], &'

CONTINUE '[2697, 4517, 1], [1134, 1700, 1], [1433, 1760, 1]]'

END

Nébuleuse du Croissant_15_08_2023 by Jérémy Zuliani

1

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2674 / length of data axis 1

NAXIS2 = 3089 / 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 = '2023-08-25T07:19:26' / UTC date that FITS file was created

DATE-OBS= '2023-08-15T21:33:20' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Canon EOS 500D' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

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

XPIXSZ = 4.68 / X pixel size microns

YPIXSZ = 4.68 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 746.212 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

EXPTIME = 182 / Exposure time [s]

STACKCNT= 100 / Stack frames

LIVETIME= 18100 / Exposure time after deadtime correction

EXPSTART= 2.46017e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46017e+06 / Exposure end time (standard Julian date)

ISOSPEED= 1600 / 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 ' / U

M101_seestar by Hartwig Luethen

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1492 / length of data axis 1

NAXIS2 = 2813 / 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-beta1' / Software that created this HDU

DATE = '2025-05-05T09:31:41' / UTC date that FITS file was created

DATE-OBS= '2025-05-02T23:48:39.747638' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

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

EXPTIME = 10. / [s] Exposure time duration

TELESCOP= 'S30_3dcd42e0' / Telescope used to acquire this image

FILTER = 'IRCUT ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 149.894 / [mm] Focal length

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 1.45000004768372 / [um] Pixel X axis size

YPIXSZ = 1.45000004768372 / [um] Pixel Y axis size

INSTRUME= 'Seestar S30' / Instrument name

CCD-TEMP= 20.25 / [degC] CCD temperature

GAIN = 200 / Sensor gain

FOCPOS = 1300 / [step] Focuser position

STACKCNT= 776 / Stack frames

LIVETIME= 7760. / [s] Exposure time after deadtime correction

EXPSTART= 2460798.40555926 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460798.52076535 / [JD]

IC5070-3 by Eric Labbe

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 = '2024-05-25T16:34:20' / UTC date that FITS file was created

DATE-OBS= '2024-05-11T04:56:31.070000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Askar FRA500' / 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= 498.301 / Camera focal length

CCD-TEMP= -10 / CCD temp in C

EXPTIME = 600 / Exposure time [s]

STACKCNT= 41 / Stack frames

LIVETIME= 24600 / Exposure time after deadtime correction

EXPSTART= 2.46044e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46046e+06 / Exposure end time (standard Julian date)

IMAGETYP= 'LIGHT ' / Type of image

OBJECT = 'IC 5070 ' / Name of the object of interest

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

GAIN = 100 / Camera gain

OFFSET = 20 / Camera offset

SITELAT = 46.8538 / [deg] Observation site latitude

SITELONG= -71.3694 / [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 50 58.155' / Image center Right Ascension (hms)

OBJCTDEC= '+44 22 35.551' / Image center Declination (dms)

RA = 312.742 / Image center Right Ascension (deg)

DEC = 44.3765 / Image center Declination (deg)

CRPIX1 = 3124 / Axis1 reference pixel

CRPIX2 = 2088 / Axis2 reference pixel

CRVAL1 = 312.742 / Axis1 reference value (deg)

CRVAL2 = 44.3765 / Axis2 reference value (deg)

CDELT1 = -0.000432294 / X pixel size (deg)

CDELT2 = 0.000432373 / Y pixel size (deg)

PC1_1 = -0.952299 / Linear transformation matrix (1, 1)

PC1_2 = -0.305705 / Linear transformation matrix (1, 2)

PC2_1 = 0.305111 / Linear transformation matrix (2, 1)

PC2_2 = -0.952144 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

AIRMASS = 1.45274 / Airmass

HISTORY mean stacking with winsorized sigma clipping rejection (low=5.000 high=5

HISTORY .000), additive+scaling normalized input, normalized output, image weigh

HISTORY ting from noise, equalized RGB

HISTORY Background extraction (Correction: Subtraction)

HISTORY Photometric CC

HISTORY Histogram Transf. (mid=0.002, lo=0.004, hi=1.000)

END

ぐるぐる FEEDが満月だらけでうれしい (お前はアップしないのか) #ep5 #olympus #pen #みなとみらい #横浜 #livetime by Ben Linero

by hanabishi ift.tt/1mRmtYf

202408110117-ím31-2,8-135PENT-Ilce5000-39x30s-800iso-web by Laszlo Roka

2

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 5472 / length of data axis 1

NAXIS2 = 3656 / 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 = '2024-08-20T17:23:26' / UTC date that FITS file was created

DATE-OBS= '2024-08-10T23:01:07' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= 'Sony ILCE-5000' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

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

XPIXSZ = 4.31 / X pixel size microns

YPIXSZ = 4.31 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 122.204 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

SET-TEMP= 0 / Temperature setting in C

EXPTIME = 30 / Exposure time [s]

STACKCNT= 38 / Stack frames

LIVETIME= 1140 / Exposure time after deadtime correction

EXPSTART= 2.46053e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46053e+006 / Exposure end time (standard Julian date)

ISOSPEED= 800 / ISO camera setting

HISTORY median stacking without rejection, additive+scaling normalized input, un

HISTORY normalized output, no image weighting, unequalized RGB

HISTORY Histogram Tran

Koen Van der Auwera - ChistmasTree_ALTAIR60ED_ASI585MC_90x120s_kvda_VeraLux by Volkssterrenwacht Urania

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3802 / length of data axis 1

NAXIS2 = 2121 / 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' / Software that created this HDU

FILENAME= 'Christmas_cluster (5).fits'

DATE = '2025-12-30T17:41:24' / UTC date that FITS file was created

DATE-OBS= '2025-12-25T23:57:27.822000' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light Frame' / Type of image

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

EXPTIME = 120. / [s] Exposure time duration

TELESCOP= 'ALTAIR 60ED 285@F\4.8' / Telescope used to acquire this image

FOCALLEN= 282.246 / [mm] Focal length

CENTALT = 48.90218 / [deg] Altitude of telescope

CENTAZ = 177.8248 / [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 CCD ASI585MC Pro' / Instrument name

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

GAIN = 252 / Sensor gain

OFFSET = 10 / Sensor gain offset

FOCPOS = 4297 / [step] Focuser position

FOCTEMP = -3.83 / [degC] Focuser temperature

STACKCNT= 89 / Stack frames

LIVETIME= 10680. / [s] Exposure time after deadtime correction

EXPSTART= 2461034.45947347 / [JD] Exposure start time (standard Julian date)

EXPEND = 2461035.50564972 / [JD] Exposure end time (standard Julian date)

AIRMASS = 1.326313 / Airmass at frame center (Gueymard 1993)

SITELAT = 51.21667 / [deg] Observation site latitude

SITELONG= 4.4 / [deg] Observation site longitude

OBJCTRA = '06 40 42.915' / [H M S] Image center Right Ascension

OBJCTDEC= '+09 54 51.826' / [D M S] Image center Declination

RA = 100.178812192708 / [deg] Image center Right Ascension

DEC = 9.91439615177086 / [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 = 1901.5 / Axis1 reference pixel

CRPIX2 = 1061. / Axis2 reference pixel

CRVAL1 = 100.178812192708 / [deg] Axis1 reference value

CRVAL2 = 9.91439615177086 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000588660436575046 / [deg] X pixel size

CDELT2 = 0.000588735637475675 / [deg] Y pixel size

PC1_1 = 0.999677507409032 / Linear transformation matrix (1, 1)

PC1_2 = 0.0253945108333279 / Linear transformation matrix (1, 2)

PC2_1 = -0.0254617412782205 / Linear transformation matrix (2, 1)

PC2_2 = 0.999675797311849 / 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 = 8.74934333290665E-08

A_1_1 = -1.23149241022567E-08

A_0_2 = 1.14951105944476E-08

A_3_0 = -7.33948394682746E-10

A_2_1 = -1.14533663003079E-11

A_1_2 = -7.24331706676028E-10

A_0_3 = 1.29217313279651E-12

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 = -2.10625752827813E-08

B_1_1 = 8.76961818507724E-08

B_0_2 = -2.84411963704975E-08

B_3_0 = 1.97414982143391E-12

B_2_1 = -7.00995819210081E-10

B_1_2 = 3.29173262610273E-12

B_0_3 = -7.78836759625051E-10

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

AP_0_0 = 0.000269950438694916

AP_1_0 = -1.03892921133886E-05

AP_0_1 = -1.98338043202733E-07

AP_2_0 = -8.86754932901915E-08

AP_1_1 = 1.25554044095537E-08

AP_0_2 = -1.12975132614606E-08

AP_3_0 = 7.42779942119624E-10

AP_2_1 = 1.16781409662171E-11

AP_1_2 = 7.35786919907536E-10

AP_0_3 = -1.14127058882996E-12

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

BP_0_0 = -0.000177133078426475

BP_1_0 = -3.09861243251107E-08

BP_0_1 = -6.74101471576094E-06

BP_2_0 = 2.12976804048454E-08

BP_1_1 = -8.80997226563721E-08

BP_0_2 = 2.87584945214219E-08

BP_3_0 = -1.99554722311813E-12

BP_2_1 = 7.0911010820563E-10

BP_1_2 = -3.20261479460819E-12

BP_0_3 = 7.86541648720726E-10

PLTSOLVD= T / Siril internal solver

HISTORY Crop (x=20, y=10, w=3802, h=2121)

HISTORY Auto BGE (100 points, poly degree=2, RBF smoothness=0.1)

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: SPCC)

HISTORY VeraLux v1.3 Stretch

FRAME = 'Light ' / Frame Type

APTDIA = 6.000E+01 / Telescope diameter (mm)

SCALE = 2.099193E+00 / arcsecs per pixel

PIERSIDE= 'WEST ' / West, looking East

RADECSYS= 'FK5 ' / RADECSYS

SECPIX1 = 2.0991930515E+00 / SECPIX1

SECPIX2 = 2.0991930515E+00 / SECPIX2

COMMENT Generated by INDI

WB_R = 5.500E+01 / White Balance - Red

WB_B = 7.500E+01 / White Balance - Blue

COMMENT Object

END

20161210 - The Hamburg Blues Band feat. Maggie Bell & Krissy - 324 by K. Tenbrock

Avilion Anniversary - Play by Osiris LeShelle

Love of a livetime play in Avilion during the second Avilion anniversary celebration

sh2-199-soul-nebula250mm150s-asi183mc-zwoOiiiHa_121624_stk125sirilcs2 by Daryl Doughty

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 = 3672 / 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 = '2024-12-17T14:45:02' / UTC date that FITS file was created

DATE-OBS= '2024-12-17T00:58:22.402521' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI183MC' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'iOptron CEM40/GEM45/HAE43 210101+' / telescope used to acquire this i

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

XPIXSZ = 2.4 / X pixel size microns

YPIXSZ = 2.4 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 249 / Camera focal length

CCD-TEMP= 11.1 / CCD temp in C

EXPTIME = 150 / Exposure time [s]

STACKCNT= 125 / Stack frames

LIVETIME= 18750 / Exposure time after deadtime correction

EXPSTART= 2.46066e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46066e+006 / Exposure end time (standard Julian date)

IMAGETYP= 'Light ' / Type of image

OBJECT = 'SH2-199 ' / Name of the object of interest

CVF = 0.90930

m45-250mm150s-asi183mc-zwoOiiiHa_122024_stk136sirilcs2 by Daryl Doughty

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 = 3672 / 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 = '2024-12-20T18:32:58' / UTC date that FITS file was created

DATE-OBS= '2024-12-20T01:23:51.804234' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI183MC' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'iOptron CEM40/GEM45/HAE43 210101+' / telescope used to acquire this i

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

XPIXSZ = 2.4 / X pixel size microns

YPIXSZ = 2.4 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 249.955 / Camera focal length

CCD-TEMP= 12.1 / CCD temp in C

EXPTIME = 150 / Exposure time [s]

STACKCNT= 136 / Stack frames

LIVETIME= 20400 / Exposure time after deadtime correction

EXPSTART= 2.46066e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46066e+006 / Exposure end time (standard Julian date)

IMAGETYP= 'Light ' / Type of image

OBJECT = 'M45 ' / Name of the object of interest

CVF = 0.90930

NGC 6888-1 by Wes Hirst

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2500 / length of data axis 1

NAXIS2 = 2380 / 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 = '2023-09-26T15:26:55' / UTC date that FITS file was created

DATE-OBS= '2023-09-26T02:37:06.913890' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI533MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Celestron AVX/CGE/CGEM/CGX' / 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= 1392.94 / Camera focal length

CCD-TEMP= -20 / CCD temp in C

EXPTIME = 120 / Exposure time [s]

STACKCNT= 26 / Stack frames

LIVETIME= 3120 / Exposure time after deadtime correction

EXPSTART= 2.46021e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46021e+06 / Exposure end time (standard Julian date)

IMAGETYP= 'Light ' / Type of image

CVF = 0.0503996 / Conversion factor (e-/adu)

GAIN = 360 / 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 = '20 12 17.958' / Image center Right Ascension (hms)

OBJCTDEC= '+38 20 40.198' / Image center Declination (dms)

RA = 303.075 / Image center Right Ascension (deg)

DEC = 38.3445 / Image center Declination (deg)

CRPIX1 = 1250 / Axis1 reference pixel

CRPIX2 = 1190 / Axis2 reference pixel

CRVAL1 = 303.075 / Axis1 reference value (deg)

CRVAL2 = 38.3445 / Axis2 reference value (deg)

CDELT1 = -0.000154651 / X pixel size (deg)

CDELT2 = 0.00015467 / Y pixel size (deg)

PC1_1 = -0.988548 / Linear transformation matrix (1, 1)

PC1_2 = -0.150724 / Linear transformation matrix (1, 2)

PC2_1 = 0.150887 / Linear transformation matrix (2, 1)

PC2_2 = -0.988579 / 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 SCNR (type=average neutral, amount=1.00, preserve=true)

HISTORY Crop (x=354, y=253, w=2500, h=2380)

HISTORY Background extraction (Correction: Subtraction)

HISTORY Photometric CC

HISTORY Asinh Transformation: (stretch= 405.0, bp=0.00000)

END

Whirlpool Galaxy by William Subjack

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 919 / length of data axis 1

NAXIS2 = 1709 / 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 = '2024-04-22T20:39:50' / UTC date that FITS file was created

DATE-OBS= '2024-04-21T05:06:55.420230' / 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= 251.756 / Camera focal length

CCD-TEMP= 17.25 / CCD temp in C

EXPTIME = 10 / Exposure time [s]

STACKCNT= 158 / Stack frames

LIVETIME= 1580 / Exposure time after deadtime correction

EXPSTART= 2.46042e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46042e+006 / Exposure end time (standard Julian date)

FILTER = 'IRCUT ' / Active filter name

IMAGETYP= 'Light ' / Type of image

OBJECT = 'M 51 ' / Name of the object of interest

GAIN = 80 / Camera gain

SITELAT = 43.0036 / [deg] Observation site latitude

SITELONG= -73.7307 / [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 = '13 30 17.750' / Image center Right Ascension (hms)

OBJCTDEC= '+47 15 10.188' / Image center Declination (dms)

RA = 202.574 / Image center Right Ascension (deg)

DEC = 47.2528 / Image center Declination (deg)

CRPIX1 = 459.5 / Axis1 reference pixel

CRPIX2 = 854.5 / Axis2 reference pixel

CRVAL1 = 202.574 / Axis1 reference value (deg)

CRVAL2 = 47.2528 / Axis2 reference value (deg)

CDELT1 = -0.000660013 / X pixel size (deg)

CDELT2 = 0.000659975 / Y pixel size (deg)

PC1_1 = -0.434256 / Linear transformation matrix (1, 1)

PC1_2 = -0.90079 / Linear transformation matrix (1, 2)

PC2_1 = 0.900755 / Linear transformation matrix (2, 1)

PC2_2 = -0.434328 / 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 Crop (x=104, y=168, w=919, h=1709)

HISTORY Background extraction (Correction: Subtraction)

HISTORY Photometric CC

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

HISTORY Deconvolution

HISTORY NL-Bayes denoise (mod=0.497, VST enabled, CC enabled)

END

Second edit North American nebula by Elizabeth Pector