SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2761 / length of data axis 1

NAXIS2 = 1973 / 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 = '2025-10-28T15:02:35' / UTC date that FITS file was created

DATE-OBS= '2025-10-13T02:19:36.128000' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light Frame' / Type of image

ROWORDER= 'TOP-DOWN' / 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= 361.9 / [mm] Focal length

CENTALT = 34.7737 / [deg] Altitude of telescope

CENTAZ = 147.7735 / [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= -10.1 / [degC] CCD temperature

GAIN = 10 / Sensor gain

OFFSET = 50 / Sensor gain offset

STACKCNT= 64 / Stack frames

LIVETIME= 12480. / [s] Exposure time after deadtime correction

EXPSTART= 2460587.65919662 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460961.71210352 / [JD] Exposure end time (standard Julian date)

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

AIRMASS = 1.750936 / Airmass at frame center (Gueymard 1993)

SITELAT = 47.85 / [deg] Observation site latitude

SITELONG= 2.033333 / [deg] Observation site longitude

OBJCTRA = '05 41 44.683' / [H M S] Image center Right Ascension

OBJCTDEC= '-02 30 3.797' / [D M S] Image center Declination

RA = 85.4361792869706 / [deg] Image center Right Ascension

DEC = -2.50105480841074 / [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 = 1381. / Axis1 reference pixel

CRPIX2 = 987. / Axis2 reference pixel

CRVAL1 = 85.4361792869706 / [deg] Axis1 reference value

CRVAL2 = -2.50105480841075 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000759738999729487 / [deg] X pixel size

CDELT2 = 0.000760126432987332 / [deg] Y pixel size

PC1_1 = -0.396931189717533 / Linear transformation matrix (1, 1)

PC1_2 = 0.917848370173104 / Linear transformation matrix (1, 2)

PC2_1 = -0.91804990143361 / Linear transformation matrix (2, 1)

PC2_2 = -0.396464851503559 / 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 = -8.53748525695356E-07

A_1_1 = -5.54691361166265E-08

A_0_2 = -5.75891443013534E-08

A_3_0 = -1.13385343955634E-09

A_2_1 = 2.07177913865027E-11

A_1_2 = -1.23466190046249E-09

A_0_3 = 5.95581042567245E-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 = 1.70325823953908E-07

B_1_1 = -7.76925000922013E-07

B_0_2 = 9.44578637394798E-08

B_3_0 = 5.00577412534425E-12

B_2_1 = -1.16776932853314E-09

B_1_2 = 2.25069456942911E-11

B_0_3 = -1.21949631811512E-09

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

AP_0_0 = -0.00292923449079684

AP_1_0 = -7.30518902347654E-06

AP_0_1 = 1.23656917566575E-08

AP_2_0 = 8.64870191792474E-07

AP_1_1 = 5.47697358393404E-08

AP_0_2 = 6.07898910788121E-08

AP_3_0 = 1.14696893968403E-09

AP_2_1 = -2.13016951288578E-11

AP_1_2 = 1.24921060306071E-09

AP_0_3 = -5.99863095694186E-11

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

BP_0_0 = 0.000581283108012733

BP_1_0 = -4.50397345090139E-07

BP_0_1 = -4.77089545691811E-06

BP_2_0 = -1.71973099547116E-07

BP_1_1 = 7.85487948919662E-07

BP_0_2 = -9.5934438830361E-08

BP_3_0 = -5.2578164755203E-12

BP_2_1 = 1.18101421738954E-09

BP_1_2 = -2.27977709131776E-11

BP_0_3 = 1.22869175860342E-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

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2920 / length of data axis 1

NAXIS2 = 1743 / 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 = 60544 / Lower visualization cutoff

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

DATE = '2025-10-27T10:36:06' / UTC date that FITS file was created

DATE-OBS= '2025-10-11T02:03:36.759000' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light Frame' / Type of image

ROWORDER= 'TOP-DOWN' / 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= 361.851 / [mm] Focal length

CENTALT = 32.56932 / [deg] Altitude of telescope

CENTAZ = 141.1502 / [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= 77 / Stack frames

LIVETIME= 15780. / [s] Exposure time after deadtime correction

EXPSTART= 2460587.64823898 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460961.71210352 / [JD] Exposure end time (standard Julian date)

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

AIRMASS = 1.854611 / Airmass at frame center (Gueymard 1993)

SITELAT = 47.85 / [deg] Observation site latitude

SITELONG= 2.033333 / [deg] Observation site longitude

OBJCTRA = '05 41 17.101' / [H M S] Image center Right Ascension

OBJCTDEC= '-02 27 16.608' / [D M S] Image center Declination

RA = 85.3212529853975 / [deg] Image center Right Ascension

DEC = -2.45461330948817 / [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 = 1460.5 / Axis1 reference pixel

CRPIX2 = 872. / Axis2 reference pixel

CRVAL1 = 85.3212529853975 / [deg] Axis1 reference value

CRVAL2 = -2.45461330948816 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.00075985385436088 / [deg] X pixel size

CDELT2 = 0.000760218242979967 / [deg] Y pixel size

PC1_1 = -0.397724532451501 / Linear transformation matrix (1, 1)

PC1_2 = 0.917504875347393 / Linear transformation matrix (1, 2)

PC2_1 = -0.917829325979214 / Linear transformation matrix (2, 1)

PC2_2 = -0.396975223877438 / 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 = -4.49294093243527E-07

A_1_1 = -2.7813944157068E-07

A_0_2 = 1.09727075136852E-07

A_3_0 = -1.15185424904529E-09

A_2_1 = -3.47158996326774E-13

A_1_2 = -1.26158502482605E-09

A_0_3 = 1.09776976602034E-10

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 = 2.75594330929522E-08

B_1_1 = -5.09190756745694E-07

B_0_2 = -3.0470052991845E-07

B_3_0 = 1.73513984791895E-11

B_2_1 = -1.18279918459994E-09

B_1_2 = 3.15571706877373E-11

B_0_3 = -1.19182744085181E-09

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

AP_0_0 = -0.00154366082464953

AP_1_0 = -9.20226477063579E-06

AP_0_1 = 1.21158329441648E-06

AP_2_0 = 4.55392164305022E-07

AP_1_1 = 2.81256417613106E-07

AP_0_2 = -1.08681946777221E-07

AP_3_0 = 1.16543485534116E-09

AP_2_1 = -1.6878971593438E-13

AP_1_2 = 1.27833284895085E-09

AP_0_3 = -1.11959936305407E-10

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

BP_0_0 = -0.000305519555633195

BP_1_0 = 5.41573822974543E-07

BP_0_1 = -5.55648788225227E-06

BP_2_0 = -2.74915199370838E-08

BP_1_1 = 5.14106023444667E-07

BP_0_2 = 3.06906029371062E-07

BP_3_0 = -1.77778865165687E-11

BP_2_1 = 1.19598440892436E-09

BP_1_2 = -3.27099707427474E-11

BP_0_3 = 1.20164722204795E-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

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2631 / length of data axis 1

NAXIS2 = 2617 / 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 = 64978 / Lower visualization cutoff

MIPS-LO = 363 / Upper visualization cutoff

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

DATE = '2025-10-26T17:14:58' / UTC date that FITS file was created

DATE-OBS= '2025-10-11T02:07:29.593000' / 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= 362.296 / [mm] Focal length

CENTALT = 32.99494 / [deg] Altitude of telescope

CENTAZ = 142.1861 / [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= 60 / Stack frames

LIVETIME= 10800. / [s] Exposure time after deadtime correction

EXPSTART= 2460959.58367594 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460961.71210352 / [JD] Exposure end time (standard Julian date)

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

AIRMASS = 1.833437 / Airmass at frame center (Gueymard 1993)

SITELAT = 47.85 / [deg] Observation site latitude

SITELONG= 2.033333 / [deg] Observation site longitude

OBJCTRA = '05 41 27.359' / [H M S] Image center Right Ascension

OBJCTDEC= '-02 26 20.069' / [D M S] Image center Declination

RA = 85.3639961433402 / [deg] Image center Right Ascension

DEC = -2.43890816654012 / [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 = 1316. / Axis1 reference pixel

CRPIX2 = 1309. / Axis2 reference pixel

CRVAL1 = 85.3639961433402 / [deg] Axis1 reference value

CRVAL2 = -2.43890816654012 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000758914925454152 / [deg] X pixel size

CDELT2 = 0.000759289382247276 / [deg] Y pixel size

PC1_1 = 0.371306241750887 / Linear transformation matrix (1, 1)

PC1_2 = 0.928510460273244 / Linear transformation matrix (1, 2)

PC2_1 = -0.928267093527982 / Linear transformation matrix (2, 1)

PC2_2 = 0.37191424155726 / 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 = 2.94881309244847E-07

A_1_1 = 3.45877975573739E-07

A_0_2 = 1.09122041356648E-07

A_3_0 = -1.17688168034674E-09

A_2_1 = -3.23631846017256E-12

A_1_2 = -1.20652833564337E-09

A_0_3 = 1.6000358371558E-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 = 2.27970856275776E-08

B_1_1 = 1.93870397065021E-07

B_0_2 = 3.84203145982648E-07

B_3_0 = 2.35801958941575E-11

B_2_1 = -1.19251804008531E-09

B_1_2 = 2.18839481143054E-12

B_0_3 = -1.17615099509145E-09

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

AP_0_0 = 0.000992351506946913

AP_1_0 = -1.2305434976545E-05

AP_0_1 = 2.19035218188615E-06

AP_2_0 = -2.98745005419411E-07

AP_1_1 = -3.50227700483276E-07

AP_0_2 = -1.10455929346158E-07

AP_3_0 = 1.19194055189286E-09

AP_2_1 = 1.65535879584666E-12

AP_1_2 = 1.22464401484942E-09

AP_0_3 = -1.72314541247435E-11

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

BP_0_0 = 0.00124142463339657

BP_1_0 = 2.11785687807902E-06

BP_0_1 = -1.23209629928622E-05

BP_2_0 = -2.37594943675075E-08

BP_1_1 = -1.96327141601552E-07

BP_0_2 = -3.89211992062096E-07

BP_3_0 = -2.4937608400146E-11

BP_2_1 = 1.21030966111719E-09

BP_1_2 = -3.83750679175477E-12

BP_0_3 = 1.19132996692288E-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

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3782 / length of data axis 1

NAXIS2 = 2095 / 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

FILENAME= 'M_77_Light_016.fits'

DATE = '2025-09-30T18:27:36' / UTC date that FITS file was created

DATE-OBS= '2025-09-23T02:05:15.840000' / 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= 282.404 / [mm] Focal length

CENTALT = 45.78787 / [deg] Altitude of telescope

CENTAZ = 175.3201 / [deg] Azimuth of telescope

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 CCD ASI585MC Pro' / Instrument name

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

GAIN = 252 / Sensor gain

OFFSET = 10 / Sensor gain offset

FOCPOS = 4509 / [step] Focuser position

FOCTEMP = 13.74 / [degC] Focuser temperature

STACKCNT= 29 / Stack frames

LIVETIME= 3480. / [s] Exposure time after deadtime correction

EXPSTART= 2460941.56625418 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460941.60939898 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M 77 ' / Name of the object of interest

AIRMASS = 1.394283 / Airmass at frame center (Gueymard 1993)

SITELAT = 44.21667 / [deg] Observation site latitude

SITELONG= 3.733333 / [deg] Observation site longitude

OBJCTRA = '02 42 42.742' / [H M S] Image center Right Ascension

OBJCTDEC= '-00 00 45.871' / [D M S] Image center Declination

RA = 40.6780898601215 / [deg] Image center Right Ascension

DEC = -0.0127418128140135 / [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 = 1891.5 / Axis1 reference pixel

CRPIX2 = 1048. / Axis2 reference pixel

CRVAL1 = 40.6780898601215 / [deg] Axis1 reference value

CRVAL2 = -0.0127418128140199 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000588341037007343 / [deg] X pixel size

CDELT2 = 0.000588398228132914 / [deg] Y pixel size

PC1_1 = 0.999966170732213 / Linear transformation matrix (1, 1)

PC1_2 = 0.00822541130615302 / Linear transformation matrix (1, 2)

PC2_1 = -0.00820447252492669 / Linear transformation matrix (2, 1)

PC2_2 = 0.999966342748889 / 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 = 1.25808510273498E-07

A_1_1 = -1.19725068700852E-07

A_0_2 = 4.64207760047613E-08

A_3_0 = -6.84912999647466E-10

A_2_1 = -5.10461722063355E-12

A_1_2 = -6.7769469590364E-10

A_0_3 = -1.62301778825624E-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 = -3.28355461414987E-08

B_1_1 = 9.50720096884776E-08

B_0_2 = -1.59054740341887E-07

B_3_0 = 5.66746579012132E-12

B_2_1 = -6.68593340552061E-10

B_1_2 = 2.17900741746912E-12

B_0_3 = -6.76013792000392E-10

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

AP_0_0 = 0.00123757741251514

AP_1_0 = -9.03399754159651E-06

AP_0_1 = -1.00367558169876E-06

AP_2_0 = -1.27624773125369E-07

AP_1_1 = 1.20936183765414E-07

AP_0_2 = -4.78754344522693E-08

AP_3_0 = 6.92656834630678E-10

AP_2_1 = 5.50837014045103E-12

AP_1_2 = 6.87194023839251E-10

AP_0_3 = 1.72145204193992E-11

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

BP_0_0 = -0.000211897265075499

BP_1_0 = -3.30201580628998E-07

BP_0_1 = -5.70880812211794E-06

BP_2_0 = 3.32114994483148E-08

BP_1_1 = -9.61664454074488E-08

BP_0_2 = 1.59842412916547E-07

BP_3_0 = -5.67101287078286E-12

BP_2_1 = 6.7579708987318E-10

BP_1_2 = -1.43044671226048E-12

BP_0_3 = 6.82067030972867E-10

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

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 5609 / length of data axis 1

NAXIS2 = 3792 / 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 = '2025-10-03T15:00:00' / UTC date that FITS file was created

DATE-OBS= '2025-10-02T00:57:13.876618' / YYYY-MM-DDThh🇲🇲ss observation start,

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

EXPTIME = 2790. / [s] Exposure time duration

OBSERVER= 'DaveMartin' / Observer name

FILTER = 'Open ' / Active filter name

FOCALLEN= 957.282 / [mm] Focal length

CENTALT = 18.8316666666667 / [deg] Altitude of telescope

CENTAZ = 356.475833333333 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 3.75999999046326 / [um] Pixel X axis size

YPIXSZ = 3.75999999046326 / [um] Pixel Y axis size

INSTRUME= 'ZWO ASI2600MC Pro' / Instrument name

CCD-TEMP= 0. / [degC] CCD temperature

SET-TEMP= 0. / [degC] CCD temperature setpoint

GAIN = 100 / Sensor gain

OFFSET = 12 / Sensor gain offset

CVF = 0.2636 / [e-/ADU] Electrons per A/D unit

FOCPOS = 19894 / [step] Focuser position

FOCTEMP = 14.2299995422363 / [degC] Focuser temperature

OBJECT = 'NGC3031 (M81, Bodes Galaxy)' / Name of the object of interest

AIRMASS = 3.06800113326292 / Airmass at frame center (Gueymard 1993)

SITELAT = 39.3488888888889 / [deg] Observation site latitude

SITELONG= -78.8116666666667 / [deg] Observation site longitude

OBJCTRA = '09 55 48.848' / [H M S] Image center Right Ascension

OBJCTDEC= '+69 17 31.886' / [D M S] Image center Declination

RA = 148.953531933572 / [deg] Image center Right Ascension

DEC = 69.2921906162125 / [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 = 2784.5 / Axis1 reference pixel

CRPIX2 = 1890.5 / Axis2 reference pixel

CRVAL1 = 148.945334134965 / [deg] Axis1 reference value

CRVAL2 = 69.2883530857642 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000224800189713318 / [deg] X pixel size

CDELT2 = 0.000225291146923613 / [deg] Y pixel size

PC1_1 = -0.355449807949834 / Linear transformation matrix (1, 1)

PC1_2 = -0.934695369641054 / Linear transformation matrix (1, 2)

PC2_1 = 0.934861765647426 / Linear transformation matrix (2, 1)

PC2_2 = -0.355011942236564 / 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 = -2.14197489256561E-07

A_1_1 = -2.90724235491365E-08

A_0_2 = -9.4540404482732E-08

A_3_0 = -3.2983456846551E-10

A_2_1 = 8.0677506465887E-12

A_1_2 = -3.16408219516367E-10

A_0_3 = -8.79674637888312E-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 = -2.74226301408309E-08

B_1_1 = -9.91430900592269E-08

B_0_2 = -6.94792858056584E-08

B_3_0 = 2.47791609194765E-12

B_2_1 = -3.1083125822795E-10

B_1_2 = 1.17268472647321E-11

B_0_3 = -3.1535023000452E-10

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

AP_0_0 = -0.00493732390209011

AP_1_0 = -1.63025603612255E-05

AP_0_1 = 5.18359300191333E-07

AP_2_0 = 2.18141380287435E-07

AP_1_1 = 2.96441303651151E-08

AP_0_2 = 9.59688951877832E-08

AP_3_0 = 3.34950498291984E-10

AP_2_1 = -8.27607302905692E-12

AP_1_2 = 3.21874509834319E-10

AP_0_3 = 8.77732246132638E-12

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

BP_0_0 = -0.00113553033914596

BP_1_0 = 7.24143935236979E-07

BP_0_1 = -1.09453140192395E-05

BP_2_0 = 2.78502429460243E-08

BP_1_1 = 1.00705928474171E-07

BP_0_2 = 7.03021862296194E-08

BP_3_0 = -2.56872201200044E-12

BP_2_1 = 3.15527920092185E-10

BP_1_2 = -1.2098014369046E-11

BP_0_3 = 3.19002192248202E-10

HISTORY Apply Signature

ADCBITS = 16 / Bit depth of camera sensor ADC in current mode

BIASADU = 121.16593933105469 / ADU for bias level (no photons) at current sett

CAMID = '1E1E560D0B020900' /

COLORTYP= 'RGB' /

DATE-AVG= '2025-10-02T01:24:24.4642098' / System Clock:Est. Frame Mid Point

DATE-END= '2025-10-02T01:51:35.0518010' / System Clock:Est. Frame End

EGAINSAV= 0.26355 / Electrons per ADU at saved bit depth

JD_UTC = 2460950.558616484 / Julian Date at mid exposure

PIERSIDE= 'EAST' /

RDNOISE = 1.77 / Read noise in electrons

RELGAIN = 2.964 / Multiplicative gain relative to minumum

SUBEXP = 30 /

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

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

DATE = '2025-05-31T22:36:14' / UTC date that FITS file was created

DATE-OBS= '2025-05-31T04:00:40.105615' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

EXPTIME = 20. / [s] Exposure time duration

TELESCOP= 'S50_123896fd' / Telescope used to acquire this image

FILTER = 'IRCUT ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 252.444 / [mm] Focal length

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= 'Seestar S50' / Instrument name

CCD-TEMP= 23.4375 / [degC] CCD temperature

GAIN = 80 / Sensor gain

BAYERPAT= 'GRBG ' / Bayer color pattern

FOCPOS = 1755 / [step] Focuser position

STACKCNT= 127 / Stack frames

OBJECT = 'M 3 ' / Name of the object of interest

SITELAT = 35.7786 / [deg] Observation site latitude

SITELONG= -86.8794 / [deg] Observation site longitude

OBJCTRA = '13 42 9.459' / [H M S] Image center Right Ascension

OBJCTDEC= '+28 24 0.512' / [D M S] Image center Declination

RA = 205.53941106338 / [deg] Image center Right Ascension

DEC = 28.4001421369429 / [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 = 540.5 / Axis1 reference pixel

CRPIX2 = 960.5 / Axis2 reference pixel

CRVAL1 = 205.53941106338 / [deg] Axis1 reference value

CRVAL2 = 28.4001421369429 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.00065806032309024 / [deg] X pixel size

CDELT2 = 0.000658330855529876 / [deg] Y pixel size

PC1_1 = 0.999983225739831 / Linear transformation matrix (1, 1)

PC1_2 = 0.00579208416391334 / Linear transformation matrix (1, 2)

PC2_1 = 0.00584417810211574 / Linear transformation matrix (2, 1)

PC2_2 = -0.999982922645337 / 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 = -5.00280088844223E-07

A_1_1 = -2.41045942433824E-08

A_0_2 = -1.26300344455828E-07

A_3_0 = 3.21934774123813E-10

A_2_1 = 3.35537519287056E-10

A_1_2 = -1.90114087744563E-10

A_0_3 = -6.10226429370072E-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 = -1.49591028349224E-07

B_1_1 = -1.68612548478867E-07

B_0_2 = -3.03078141300171E-08

B_3_0 = -2.34769634160712E-11

B_2_1 = 3.00704133490127E-10

B_1_2 = -7.93617410304434E-11

B_0_3 = -8.95847762268545E-12

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

AP_0_0 = 1.0064377622459E-06

AP_1_0 = 3.13211243607725E-08

AP_0_1 = 2.86853959218084E-09

AP_2_0 = 5.00066796611434E-07

AP_1_1 = 2.39885611916787E-08

AP_0_2 = 1.26345136459472E-07

AP_3_0 = -3.21509451835463E-10

AP_2_1 = -3.35428250307251E-10

AP_1_2 = 1.90256910595659E-10

AP_0_3 = 6.10287074002109E-11

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

BP_0_0 = -1.0794136465443E-06

BP_1_0 = 1.13544749212251E-08

BP_0_1 = -1.18381948688295E-09

BP_2_0 = 1.49568757002146E-07

BP_1_1 = 1.68495568229023E-07

BP_0_2 = 3.03303053761316E-08

BP_3_0 = 2.36009318302564E-11

BP_2_1 = -3.00557610697287E-10

BP_1_2 = 7.94180634896901E-11

BP_0_3 = 8.98095569262816E-12

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: SPCC)

HISTORY Histogram Transf. (mid=0.140, lo=0.015, hi=1.000)

HISTORY Histogram Transf. (mid=0.077, lo=0.023, hi=1.000)

HISTORY Histogram Transf. (mid=0.168, lo=0.019, hi=1.000)

HISTORY Saturation enhancement (amount=0.30)

HISTORY NL-Bayes denoise (mod=1.000, CC enabled)

CREATOR = 'ZWO Seestar S50' / Capture software

PRODUCER= 'ZWO ' / Powered by ZWO

XORGSUBF= 0 / Subframe X position in binned pixels

YORGSUBF= 0 / Subframe Y position in binned pixels

EQMODE = 1 / Equatorial mode

CCDXBIN = 1 / Camera X Bin

CCDYBIN = 1 / Camera Y Bin

TOTALEXP= 2540. / Total Exposure Time in seconds

IMAGEW = 1080 / Image width, in pixels.

IMAGEH = 1920 / Image height, in pixels.

BG-EXTR = 'GraXpert'

CBG-1 = 0.019578578

CBG-2 = 0.019578578

CBG-3 = 0.019578578

INTP-OPT= 'AI '

HIERARCH SMOOTHING = 0.5

HIERARCH CORR-TYPE = 'Subtraction'

HIERARCH BGE-AI-VER = '1.0.1 '

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

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

DATE = '2025-06-07T22:40:41' / UTC date that FITS file was created

DATE-OBS= '2025-06-05T04:50:07.475027' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

EXPTIME = 20. / [s] Exposure time duration

TELESCOP= 'S50_123896fd' / Telescope used to acquire this image

FILTER = 'IRCUT ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 252.42 / [mm] Focal length

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= 'Seestar S50' / Instrument name

CCD-TEMP= 29.8125 / [degC] CCD temperature

GAIN = 80 / Sensor gain

BAYERPAT= 'GRBG ' / Bayer color pattern

FOCPOS = 1757 / [step] Focuser position

STACKCNT= 155 / Stack frames

OBJECT = 'M 12 ' / Name of the object of interest

SITELAT = 35.7785 / [deg] Observation site latitude

SITELONG= -86.8798 / [deg] Observation site longitude

OBJCTRA = '16 47 21.957' / [H M S] Image center Right Ascension

OBJCTDEC= '-01 59 13.008' / [D M S] Image center Declination

RA = 251.841486450651 / [deg] Image center Right Ascension

DEC = -1.98694667261087 / [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 = 540.5 / Axis1 reference pixel

CRPIX2 = 960.5 / Axis2 reference pixel

CRVAL1 = 251.841486450651 / [deg] Axis1 reference value

CRVAL2 = -1.98694667261086 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000658052923834255 / [deg] X pixel size

CDELT2 = 0.000658463668670192 / [deg] Y pixel size

PC1_1 = 0.999859627944601 / Linear transformation matrix (1, 1)

PC1_2 = -0.0167548323322904 / Linear transformation matrix (1, 2)

PC2_1 = -0.0163407999899476 / Linear transformation matrix (2, 1)

PC2_2 = -0.999866480214078 / 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 = -3.97067676192399E-07

A_1_1 = -2.50517976255226E-08

A_0_2 = -4.40706460260579E-08

A_3_0 = 1.87296213352023E-10

A_2_1 = 3.43555134039571E-11

A_1_2 = -3.44148514961667E-11

A_0_3 = 4.9767597566655E-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 = 5.1494924524826E-08

B_1_1 = -2.97311256114654E-07

B_0_2 = 3.33108062974068E-08

B_3_0 = -1.38324506816048E-10

B_2_1 = 9.2482273334419E-11

B_1_2 = 1.43688986920739E-10

B_0_3 = -1.03573463851297E-10

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

AP_0_0 = 2.50222870268444E-06

AP_1_0 = -5.94257065777981E-09

AP_0_1 = 3.3972294496623E-09

AP_2_0 = 3.96964387125129E-07

AP_1_1 = 2.49692004644084E-08

AP_0_2 = 4.40848215201782E-08

AP_3_0 = -1.86954297653946E-10

AP_2_1 = -3.43019995251273E-11

AP_1_2 = 3.45055752678973E-11

AP_0_3 = -4.97883228659934E-11

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

BP_0_0 = 8.78279641685569E-06

BP_1_0 = 5.43638709975775E-09

BP_0_1 = -1.14990611477239E-08

BP_2_0 = -5.15012212336271E-08

BP_1_1 = 2.97371295058842E-07

BP_0_2 = -3.33659731186038E-08

BP_3_0 = 1.38272005987557E-10

BP_2_1 = -9.22712256614251E-11

BP_1_2 = -1.4376976851595E-10

BP_0_3 = 1.03636139927709E-10

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: SPCC)

HISTORY Histogram Transf. (mid=0.072, lo=0.028, hi=1.000)

HISTORY Histogram Transf. (mid=0.109, lo=0.030, hi=1.000)

HISTORY Histogram Transf. (mid=0.278, lo=0.034, hi=1.000)

HISTORY Saturation enhancement (amount=0.25)

HISTORY NL-Bayes denoise (mod=1.000, CC enabled)

CREATOR = 'ZWO Seestar S50' / Capture software

PRODUCER= 'ZWO ' / Powered by ZWO

XORGSUBF= 0 / Subframe X position in binned pixels

YORGSUBF= 0 / Subframe Y position in binned pixels

EQMODE = 1 / Equatorial mode

CCDXBIN = 1 / Camera X Bin

CCDYBIN = 1 / Camera Y Bin

TOTALEXP= 3100. / Total Exposure Time in seconds

IMAGEW = 1080 / Image width, in pixels.

IMAGEH = 1920 / Image height, in pixels.

BG-EXTR = 'GraXpert'

CBG-1 = 0.031109026

CBG-2 = 0.031109026

CBG-3 = 0.031109026

INTP-OPT= 'AI '

HIERARCH SMOOTHING = 0.5

HIERARCH CORR-TYPE = 'Subtraction'

HIERARCH BGE-AI-VER = '1.0.1 '

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 1728 / length of data axis 1

NAXIS2 = 2336 / 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 = '2025-06-04T22:08:27' / UTC date that FITS file was created

DATE-OBS= '2025-06-04T09:31:48.899595' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

EXPTIME = 20. / [s] Exposure time duration

TELESCOP= 'S50_5b29e85a' / Telescope used to acquire this image

FILTER = 'IRCUT ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 251.995 / [mm] Focal length

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= 'Seestar S50' / Instrument name

CCD-TEMP= 25.25 / [degC] CCD temperature

GAIN = 80 / Sensor gain

BAYERPAT= 'GRBG ' / Bayer color pattern

FOCPOS = 1625 / [step] Focuser position

STACKCNT= 180 / Stack frames

OBJECT = 'M 24 ' / Name of the object of interest

SITELAT = 35.7785 / [deg] Observation site latitude

SITELONG= -86.8798 / [deg] Observation site longitude

OBJCTRA = '18 20 9.041' / [H M S] Image center Right Ascension

OBJCTDEC= '-18 10 7.994' / [D M S] Image center Declination

RA = 275.037669339729 / [deg] Image center Right Ascension

DEC = -18.1688871411765 / [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 = 864.5 / Axis1 reference pixel

CRPIX2 = 1168.5 / Axis2 reference pixel

CRVAL1 = 275.037669339729 / [deg] Axis1 reference value

CRVAL2 = -18.1688871411765 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000659232885472067 / [deg] X pixel size

CDELT2 = 0.000659503404831441 / [deg] Y pixel size

PC1_1 = 0.0337238153841777 / Linear transformation matrix (1, 1)

PC1_2 = 0.999431190365767 / Linear transformation matrix (1, 2)

PC2_1 = 0.999430989957368 / Linear transformation matrix (2, 1)

PC2_2 = -0.0337297541176083 / 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 = -2.46154358704978E-08

A_1_1 = -1.28160250007764E-07

A_0_2 = 2.48158483958035E-07

A_3_0 = 4.02871096647265E-11

A_2_1 = 4.19286576052996E-11

A_1_2 = 9.08549813846631E-12

A_0_3 = -1.90651000258608E-10

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 = -2.46238985937207E-08

B_1_1 = -2.76112009983972E-08

B_0_2 = -9.51892840550147E-08

B_3_0 = -3.57365099408533E-11

B_2_1 = 2.93273318089684E-11

B_1_2 = 1.27871613796118E-11

B_0_3 = 2.27619651109081E-11

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

AP_0_0 = -2.99786026592604E-05

AP_1_0 = -1.15152476443114E-09

AP_0_1 = 1.68079119370677E-08

AP_2_0 = 2.46439605446053E-08

AP_1_1 = 1.28185926466261E-07

AP_0_2 = -2.48012581663984E-07

AP_3_0 = -4.02763670967743E-11

AP_2_1 = -4.1970756536034E-11

AP_1_2 = -9.10051519288635E-12

AP_0_3 = 1.9053870236005E-10

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

BP_0_0 = 9.96762924406388E-06

BP_1_0 = 3.04159777008815E-09

BP_0_1 = -8.04383404329201E-09

BP_2_0 = 2.45961755101252E-08

BP_1_1 = 2.76347804225327E-08

BP_0_2 = 9.51701737502245E-08

BP_3_0 = 3.5733350982172E-11

BP_2_1 = -2.92907877559557E-11

BP_1_2 = -1.28014908512365E-11

BP_0_3 = -2.27440431237735E-11

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: SPCC)

HISTORY Histogram Transf. (mid=0.076, lo=0.024, hi=1.000)

HISTORY Histogram Transf. (mid=0.143, lo=0.022, hi=1.000)

HISTORY Histogram Transf. (mid=0.273, lo=0.040, hi=1.000)

HISTORY Saturation enhancement (amount=0.30)

HISTORY NL-Bayes denoise (mod=1.000, CC enabled)

CREATOR = 'ZWO Seestar S50' / Capture software

PRODUCER= 'ZWO ' / Powered by ZWO

XORGSUBF= 0 / Subframe X position in binned pixels

YORGSUBF= 0 / Subframe Y position in binned pixels

EQMODE = 1 / Equatorial mode

CCDXBIN = 1 / Camera X Bin

CCDYBIN = 1 / Camera Y Bin

TOTALEXP= 3600. / Total Exposure Time in seconds

IMAGEW = 1728 / Image width, in pixels.

IMAGEH = 3072 / Image height, in pixels.

BG-EXTR = 'GraXpert'

CBG-1 = 0.027795196

CBG-2 = 0.027795196

CBG-3 = 0.027795196

INTP-OPT= 'AI '

HIERARCH SMOOTHING = 0.5

HIERARCH CORR-TYPE = 'Subtraction'

HIERARCH BGE-AI-VER = '1.0.1 '

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3233 / length of data axis 1

NAXIS2 = 2381 / 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 = '2025-05-30T15:34:34' / UTC date that FITS file was created

DATE-OBS= '2025-05-29T22:51:11.440000' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'LIGHT ' / Type of image

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

EXPTIME = 180. / [s] Exposure time duration

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

FOCALLEN= 362.746 / [mm] Focal length

CENTALT = 46.5351886177 / [deg] Altitude of telescope

CENTAZ = 328.529153054 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 4.80000019073486 / [um] Pixel X axis size

YPIXSZ = 4.80000019073486 / [um] Pixel Y axis size

INSTRUME= 'QHY168C ' / Instrument name

CCD-TEMP= -10.1 / [degC] CCD temperature

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

GAIN = 10 / Sensor gain

OFFSET = 50 / Sensor gain offset

STACKCNT= 50 / Stack frames

LIVETIME= 9000. / [s] Exposure time after deadtime correction

EXPSTART= 2460825.44591554 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460825.58988351 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M 81 ' / Name of the object of interest

AIRMASS = 1.37656926256564 / Airmass at frame center (Gueymard 1993)

SITELAT = 47.8461111111111 / [deg] Observation site latitude

SITELONG= 2.03333333333333 / [deg] Observation site longitude

SITEELEV= 100. / [m] Observation site elevation

OBJCTRA = '09 56 28.991' / [H M S] Image center Right Ascension

OBJCTDEC= '+69 13 39.535' / [D M S] Image center Declination

RA = 149.120797829765 / [deg] Image center Right Ascension

DEC = 69.2276487128759 / [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 = 1398.5 / Axis1 reference pixel

CRPIX2 = 1324.5 / Axis2 reference pixel

CRVAL1 = 149.232400331936 / [deg] Axis1 reference value

CRVAL2 = 69.4176747680329 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.00075846636598721 / [deg] X pixel size

CDELT2 = 0.000757856678281084 / [deg] Y pixel size

PC1_1 = 0.684319883532855 / Linear transformation matrix (1, 1)

PC1_2 = 0.729181936831666 / Linear transformation matrix (1, 2)

PC2_1 = -0.72912939960989 / Linear transformation matrix (2, 1)

PC2_2 = 0.684375860638379 / 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 = 4.88282691352465E-07

A_1_1 = -4.84143767300149E-08

A_0_2 = 2.47902930496684E-07

A_3_0 = -9.38902752301354E-10

A_2_1 = -2.60908941548892E-11

A_1_2 = -9.59812714947483E-10

A_0_3 = -2.43623482638473E-10

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 = -5.55579050606427E-08

B_1_1 = 2.85841832834249E-07

B_0_2 = -1.71345239101971E-07

B_3_0 = -5.37968508068464E-11

B_2_1 = -1.06440014406305E-09

B_1_2 = -2.85233836657898E-12

B_0_3 = -8.98180265970671E-10

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

AP_0_0 = 0.0128303089794321

AP_1_0 = -5.52758456159319E-05

AP_0_1 = -1.03930010898326E-05

AP_2_0 = -5.0466446282257E-07

AP_1_1 = 5.04489272149756E-08

AP_0_2 = -2.54046104525162E-07

AP_3_0 = 9.65790534423701E-10

AP_2_1 = 3.06235131352588E-11

AP_1_2 = 9.91309560570671E-10

AP_0_3 = 2.5020950408452E-10

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

BP_0_0 = -0.0028162775575758

BP_1_0 = -5.58511609164564E-06

BP_0_1 = -4.20740732082203E-05

BP_2_0 = 5.68390105826947E-08

BP_1_1 = -2.9435324378723E-07

BP_0_2 = 1.74875324548103E-07

BP_3_0 = 5.59034993100432E-11

BP_2_1 = 1.09476749115569E-09

BP_1_2 = 6.72664307213777E-12

BP_0_3 = 9.19144264237707E-10

DATE-LOC= '2025-05-30T00:51:11.440' / Time of observation (local)

MJD-OBS = 60824.9522157409 / Modified Julian Date of observation

DATE-AVG= '2025-05-29T22:52:40.986' / Averaged midpoint time (UTC)

MJD-AVG = 60824.953252153 / Modified Julian Date of averaged midpoint

CAMERAID= 'QHY168C-f3c29947a8d19c337' / Imaging instrument identifier

USBLIMIT= 0 / Camera-specific USB setting

FOCRATIO= 58.0 / Focal ratio

PIERSIDE= 'East' / Telescope pointing state

OBJCTROT= 312.29 / [deg] planned rotation of imaged object

ROTNAME = 'Manual Rotator' / Rotator equipment name

ROTATOR = 312.086853027344 / [deg] Mechanical rotator angle

ROTATANG= 312.086853027344 / [deg] Mechanical rotator angle

ROTSTPSZ= 0.0 / [deg] Rotator step size

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

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

DATE = '2025-06-07T23:27:51' / UTC date that FITS file was created

DATE-OBS= '2025-06-05T06:05:08.786685' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

EXPTIME = 20. / [s] Exposure time duration

TELESCOP= 'S50_123896fd' / Telescope used to acquire this image

FILTER = 'IRCUT ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 252.388 / [mm] Focal length

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= 'Seestar S50' / Instrument name

CCD-TEMP= 29.125 / [degC] CCD temperature

GAIN = 80 / Sensor gain

BAYERPAT= 'GRBG ' / Bayer color pattern

FOCPOS = 1757 / [step] Focuser position

STACKCNT= 93 / Stack frames

OBJECT = 'M 11 ' / Name of the object of interest

SITELAT = 35.7785 / [deg] Observation site latitude

SITELONG= -86.8798 / [deg] Observation site longitude

OBJCTRA = '18 51 13.039' / [H M S] Image center Right Ascension

OBJCTDEC= '-06 16 32.997' / [D M S] Image center Declination

RA = 282.804329818201 / [deg] Image center Right Ascension

DEC = -6.27583250244021 / [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 = 540.5 / Axis1 reference pixel

CRPIX2 = 960.5 / Axis2 reference pixel

CRVAL1 = 282.804329818201 / [deg] Axis1 reference value

CRVAL2 = -6.27583250244021 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.00065814001567209 / [deg] X pixel size

CDELT2 = 0.00065854737709874 / [deg] Y pixel size

PC1_1 = 0.999879855620356 / Linear transformation matrix (1, 1)

PC1_2 = -0.0155007846451683 / Linear transformation matrix (1, 2)

PC2_1 = -0.0149855667436556 / Linear transformation matrix (2, 1)

PC2_2 = -0.999887710090174 / 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 = -2.24525028342917E-07

A_1_1 = -1.60721993532202E-08

A_0_2 = -3.24992262055766E-08

A_3_0 = 2.18495933743928E-10

A_2_1 = 4.36584161640797E-11

A_1_2 = 9.57562150950899E-12

A_0_3 = 2.27994283830082E-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 = 8.14677889354206E-08

B_1_1 = -3.1910260522418E-07

B_0_2 = 3.83319286346575E-09

B_3_0 = -1.58504642826136E-10

B_2_1 = -3.76401409235664E-11

B_1_2 = 6.00108348386E-11

B_0_3 = -2.21465075647751E-11

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

AP_0_0 = 3.99499320851804E-06

AP_1_0 = -4.49696591076076E-09

AP_0_1 = -1.41163753756485E-09

AP_2_0 = 2.24439124946558E-07

AP_1_1 = 1.60320716717953E-08

AP_0_2 = 3.24965112604105E-08

AP_3_0 = -2.18343600716453E-10

AP_2_1 = -4.36245389371371E-11

AP_1_2 = -9.53371145447599E-12

AP_0_3 = -2.27989121952331E-11

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

BP_0_0 = 2.83916621410437E-06

BP_1_0 = 2.5635307276528E-09

BP_0_1 = -2.94918200971495E-10

BP_2_0 = -8.1438614681444E-08

BP_1_1 = 3.19123854856308E-07

BP_0_2 = -3.85204668969661E-09

BP_3_0 = 1.58408767321976E-10

BP_2_1 = 3.77957586787564E-11

BP_1_2 = -6.00202656552857E-11

BP_0_3 = 2.21605028878896E-11

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: SPCC)

HISTORY Histogram Transf. (mid=0.080, lo=0.023, hi=1.000)

HISTORY Histogram Transf. (mid=0.143, lo=0.027, hi=1.000)

HISTORY Histogram Transf. (mid=0.337, lo=0.025, hi=1.000)

HISTORY Histogram Transf. (mid=0.372, lo=0.022, hi=1.000)

HISTORY Histogram Transf. (mid=0.413, lo=0.014, hi=1.000)

HISTORY Saturation enhancement (amount=0.30)

HISTORY NL-Bayes denoise (mod=1.000, CC enabled)

CREATOR = 'ZWO Seestar S50' / Capture software

PRODUCER= 'ZWO ' / Powered by ZWO

XORGSUBF= 0 / Subframe X position in binned pixels

YORGSUBF= 0 / Subframe Y position in binned pixels

EQMODE = 1 / Equatorial mode

CCDXBIN = 1 / Camera X Bin

CCDYBIN = 1 / Camera Y Bin

TOTALEXP= 1860. / Total Exposure Time in seconds

IMAGEW = 1080 / Image width, in pixels.

IMAGEH = 1920 / Image height, in pixels.

BG-EXTR = 'GraXpert'

CBG-1 = 0.027343102

CBG-2 = 0.027343102

CBG-3 = 0.027343102

INTP-OPT= 'AI '

HIERARCH SMOOTHING = 0.5

HIERARCH CORR-TYPE = 'Subtraction'

HIERARCH BGE-AI-VER = '1.0.1 '

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

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

FILENAME= 'Stacked_440_M 71_20.0s_IRCUT_20250603-042358_GraXpert.fits'

DATE = '2025-06-03T16:26:10' / UTC date that FITS file was created

DATE-OBS= '2025-06-03T09:23:19.323921' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

EXPTIME = 20. / [s] Exposure time duration

TELESCOP= 'S50_123896fd' / Telescope used to acquire this image

FILTER = 'IRCUT ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 252.414 / [mm] Focal length

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= 'Seestar S50' / Instrument name

CCD-TEMP= 26.0625 / [degC] CCD temperature

GAIN = 80 / Sensor gain

BAYERPAT= 'GRBG ' / Bayer color pattern

FOCPOS = 1759 / [step] Focuser position

STACKCNT= 750 / Stack frames

LIVETIME= 40. / [s] Exposure time after deadtime correction

EXPSTART= 2460829.8871334 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460829.89142735 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M 71 ' / Name of the object of interest

SITELAT = 35.779 / [deg] Observation site latitude

SITELONG= -86.8795 / [deg] Observation site longitude

OBJCTRA = '19 53 47.152' / [H M S] Image center Right Ascension

OBJCTDEC= '+18 46 6.587' / [D M S] Image center Declination

RA = 298.446466236417 / [deg] Image center Right Ascension

DEC = 18.7684962964301 / [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 = 540.5 / Axis1 reference pixel

CRPIX2 = 960.5 / Axis2 reference pixel

CRVAL1 = 298.446466236417 / [deg] Axis1 reference value

CRVAL2 = 18.7684962964301 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.00065815207315393 / [deg] X pixel size

CDELT2 = 0.000658396012817375 / [deg] Y pixel size

PC1_1 = 0.999950460325894 / Linear transformation matrix (1, 1)

PC1_2 = -0.00995373769155548 / Linear transformation matrix (1, 2)

PC2_1 = -0.00970148377080302 / Linear transformation matrix (2, 1)

PC2_2 = -0.999952939498977 / 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 = -2.80834441656347E-07

A_1_1 = 1.57401598403992E-08

A_0_2 = -1.09694465272765E-08

A_3_0 = 3.26477196122145E-11

A_2_1 = 6.27951555218692E-11

A_1_2 = -6.4719491103523E-11

A_0_3 = 9.439338135889E-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 = 1.76126998620582E-09

B_1_1 = -2.86299108283404E-07

B_0_2 = 1.5274809166963E-08

B_3_0 = 5.93236696110142E-11

B_2_1 = -6.41542773448112E-11

B_1_2 = 1.00113599994692E-10

B_0_3 = -2.57531255222703E-11

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

AP_0_0 = -2.73315024003084E-06

AP_1_0 = -9.84757830835292E-10

AP_0_1 = 1.86724672947756E-09

AP_2_0 = 2.80848612436362E-07

AP_1_1 = -1.57666594141229E-08

AP_0_2 = 1.09801352391227E-08

AP_3_0 = -3.24870198898941E-11

AP_2_1 = -6.28277194458324E-11

AP_1_2 = 6.47441874674208E-11

AP_0_3 = -9.44394273474838E-12

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

BP_0_0 = 5.37433491529884E-06

BP_1_0 = 2.36163442213994E-09

BP_0_1 = -3.01541469571731E-09

BP_2_0 = -1.82055695881144E-09

BP_1_1 = 2.86341573340303E-07

BP_0_2 = -1.52926517559403E-08

BP_3_0 = -5.93294879848231E-11

BP_2_1 = 6.43443834775647E-11

BP_1_2 = -1.00154763014345E-10

BP_0_3 = 2.57637749139437E-11

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: SPCC)

HISTORY Histogram Transf. (mid=0.158, lo=0.019, hi=1.000)

HISTORY Histogram Transf. (mid=0.176, lo=0.019, hi=1.000)

HISTORY Histogram Transf. (mid=0.235, lo=0.022, hi=1.000)

HISTORY Histogram Transf. (mid=0.316, lo=0.017, hi=1.000)

HISTORY Saturation enhancement (amount=0.25)

CREATOR = 'ZWO Seestar S50' / Capture software

PRODUCER= 'ZWO ' / Powered by ZWO

XORGSUBF= 0 / Subframe X position in binned pixels

YORGSUBF= 0 / Subframe Y position in binned pixels

EQMODE = 1 / Equatorial mode

CCDXBIN = 1 / Camera X Bin

CCDYBIN = 1 / Camera Y Bin

TOTALEXP= 8800. / Total Exposure Time in seconds

IMAGEW = 1080 / Image width, in pixels.

IMAGEH = 1920 / Image height, in pixels.

BG-EXTR = 'GraXpert'

CBG-1 = 0.024179539

CBG-2 = 0.024179539

CBG-3 = 0.024179539

INTP-OPT= 'AI '

HIERARCH SMOOTHING = 0.5

HIERARCH CORR-TYPE = 'Subtraction'

HIERARCH BGE-AI-VER = '1.0.1 '

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

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

FILENAME= 'Light_M 8_20.0s_LP_20250605-024923.fit'

DATE = '2025-06-06T02:53:04' / UTC date that FITS file was created

DATE-OBS= '2025-06-05T07:48:58.048129' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

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

EXPTIME = 20. / [s] Exposure time duration

TELESCOP= 'S30_e659ca8e' / Telescope used to acquire this image

FILTER = 'LP ' / Active filter name

APERTURE= 5. / Aperture of the instrument

FOCALLEN= 149.843 / [mm] Focal length

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= 'Seestar S30' / Instrument name

CCD-TEMP= 27.375 / [degC] CCD temperature

GAIN = 200 / Sensor gain

FOCPOS = 1276 / [step] Focuser position

STACKCNT= 54 / Stack frames

LIVETIME= 1080. / [s] Exposure time after deadtime correction

EXPSTART= 2460831.82567185 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460831.87499534 / [JD] Exposure end time (standard Julian date)

OBJECT = 'M 8 ' / Name of the object of interest

SITELAT = 35.7784 / [deg] Observation site latitude

SITELONG= -86.8796 / [deg] Observation site longitude

OBJCTRA = '18 03 22.564' / [H M S] Image center Right Ascension

OBJCTDEC= '-24 22 33.176' / [D M S] Image center Declination

RA = 270.844015892791 / [deg] Image center Right Ascension

DEC = -24.3758822631326 / [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 = 540.5 / Axis1 reference pixel

CRPIX2 = 960.5 / Axis2 reference pixel

CRVAL1 = 270.844015892791 / [deg] Axis1 reference value

CRVAL2 = -24.3758822631326 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.00110854951634605 / [deg] X pixel size

CDELT2 = 0.00110921050407719 / [deg] Y pixel size

PC1_1 = 0.999994940188377 / Linear transformation matrix (1, 1)

PC1_2 = 0.00318113150383442 / Linear transformation matrix (1, 2)

PC2_1 = -0.00357893009992938 / Linear transformation matrix (2, 1)

PC2_2 = 0.999993595609162 / 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 = 9.40929049089533E-08

A_1_1 = -7.30422846238475E-08

A_0_2 = 4.57451058576485E-08

A_3_0 = 1.53299348512243E-11

A_2_1 = 1.01376786160052E-10

A_1_2 = -1.47335028550501E-10

A_0_3 = 9.6377660630063E-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 = 3.61940585536948E-09

B_1_1 = 1.68823447921674E-07

B_0_2 = -7.48447984398245E-08

B_3_0 = -1.20657505084576E-10

B_2_1 = -1.96897705150247E-10

B_1_2 = 8.16115283630384E-11

B_0_3 = -1.51894249768141E-10

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

AP_0_0 = 8.42961318944112E-06

AP_1_0 = -7.01731550645235E-09

AP_0_1 = 1.98703748254106E-08

AP_2_0 = -9.41306424629362E-08

AP_1_1 = 7.31421006461143E-08

AP_0_2 = -4.58046298061271E-08

AP_3_0 = -1.53134481561121E-11

AP_2_1 = -1.01496171819088E-10

AP_1_2 = 1.47478185972107E-10

AP_0_3 = -9.64655385576266E-11

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

BP_0_0 = -9.7340053798689E-06

BP_1_0 = 3.32401633620148E-09

BP_0_1 = -2.69285227449956E-08

BP_2_0 = -3.59900693544366E-09

BP_1_1 = -1.68952681395166E-07

BP_0_2 = 7.49282676311739E-08

BP_3_0 = 1.20674065041788E-10

BP_2_1 = 1.97063099083348E-10

BP_1_2 = -8.17624748678291E-11

BP_0_3 = 1.52015753007442E-10

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Photometric CC (algorithm: SPCC)

HISTORY Histogram Transf. (mid=0.071, lo=0.000, hi=1.000)

HISTORY Histogram Transf. (mid=0.134, lo=0.014, hi=1.000)

HISTORY Histogram Transf. (mid=0.301, lo=0.017, hi=1.000)

HISTORY Histogram Transf. (mid=0.378, lo=0.014, hi=1.000)

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

HISTORY Saturation enhancement (amount=0.12)

HISTORY NL-Bayes denoise (mod=1.000, CC enabled)

CREATOR = 'ZWO Seestar S30' / Capture software

PRODUCER= 'ZWO ' / Powered by ZWO

XORGSUBF= 0 / Subframe X position in binned pixels

YORGSUBF= 0 / Subframe Y position in binned pixels

EQMODE = 1 / Equatorial mode

CCDXBIN = 1 / Camera X Bin

CCDYBIN = 1 / Camera Y Bin

TOTALEXP= 20. / Total Exposure Time in seconds

BG-EXTR = 'GraXpert'

CBG-1 = 0.0018418984

CBG-2 = 0.0018418984

CBG-3 = 0.0018418984

INTP-OPT= 'AI '

HIERARCH SMOOTHING = 0.5

HIERARCH CORR-TYPE = 'Subtraction'

HIERARCH BGE-AI-VER = '1.0.1 '

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4943 / 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

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

DATE = '2025-09-13T16:21:39' / UTC date that FITS file was created

DATE-OBS= '2025-09-13T07:33:14.700861' / YYYY-MM-DDThh🇲🇲ss observation start,

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

EXPTIME = 1320.000022 / [s] Exposure time duration

OBSERVER= 'DaveMartin' / Observer name

FILTER = 'L_Enhance' / Active filter name

FOCALLEN= 955.37 / [mm] Focal length

CENTALT = 8.59444444444444 / [deg] Altitude of telescope

CENTAZ = 234.1125 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 3.76 / [um] Pixel X axis size

YPIXSZ = 3.76 / [um] Pixel Y axis size

INSTRUME= 'ZWO ASI2600MC Pro' / Instrument name

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

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

GAIN = 100 / Sensor gain

OFFSET = 12 / Sensor gain offset

CVF = 0.2636 / [e-/ADU] Electrons per A/D unit

FOCPOS = 19802 / [step] Focuser position

FOCTEMP = 11.0799999237061 / [degC] Focuser temperature

OBJECT = 'C63 (NGC 7293,Helix Nebula)' / Name of the object of interest

AIRMASS = 6.4070293526238 / Airmass at frame center (Gueymard 1993)

SITELAT = 39.3488888888889 / [deg] Observation site latitude

SITELONG= -78.8116666666667 / [deg] Observation site longitude

OBJCTRA = '22 29 34.310' / [H M S] Image center Right Ascension

OBJCTDEC= '-20 51 16.945' / [D M S] Image center Declination

RA = 337.392959615903 / [deg] Image center Right Ascension

DEC = -20.854706898486 / [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 = 2709.5 / Axis1 reference pixel

CRPIX2 = 1773.5 / Axis2 reference pixel

CRVAL1 = 337.399128956553 / [deg] Axis1 reference value

CRVAL2 = -20.7996295478691 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000225510163891526 / [deg] X pixel size

CDELT2 = 0.000225482084942629 / [deg] Y pixel size

PC1_1 = -0.351969936537546 / Linear transformation matrix (1, 1)

PC1_2 = -0.936011305366424 / Linear transformation matrix (1, 2)

PC2_1 = 0.937876811192815 / Linear transformation matrix (2, 1)

PC2_2 = -0.346968423673967 / 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 = -2.48155267587289E-07

A_1_1 = -7.37080951713459E-08

A_0_2 = -1.0185402233959E-07

A_3_0 = -3.10786560799088E-10

A_2_1 = 8.79569903156368E-12

A_1_2 = -3.04846006866839E-10

A_0_3 = -6.06085117746066E-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 = -3.71136982152501E-08

B_1_1 = -1.11144100001858E-07

B_0_2 = -5.09393009922912E-08

B_3_0 = 2.75713447794016E-12

B_2_1 = -3.11590449454089E-10

B_1_2 = -6.9918394766723E-12

B_0_3 = -3.05627306702949E-10

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

AP_0_0 = -0.00559933092150055

AP_1_0 = -1.45363595953629E-05

AP_0_1 = 7.38507103618295E-07

AP_2_0 = 2.52501933424886E-07

AP_1_1 = 7.48399998784623E-08

AP_0_2 = 1.03410289057783E-07

AP_3_0 = 3.15385485065831E-10

AP_2_1 = -8.99122166542793E-12

AP_1_2 = 3.09872377490142E-10

AP_0_3 = 5.99122956285838E-12

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

BP_0_0 = -0.00122174326625579

BP_1_0 = 4.65612420164889E-07

BP_0_1 = -1.03552261550011E-05

BP_2_0 = 3.76509361056749E-08

BP_1_1 = 1.13004217667708E-07

BP_0_2 = 5.16834230646392E-08

BP_3_0 = -2.81176655378289E-12

BP_2_1 = 3.16109793723774E-10

BP_1_2 = 6.89386424550257E-12

BP_0_3 = 3.09074307921957E-10

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Crop (x=415, y=191, w=4943, h=3670)

HISTORY Background extraction (Correction: Subtraction)

HISTORY Photometric CC (algorithm: PCC)

HISTORY GraXpert AI denoise: strength 0.50

HISTORY Histogram Transf. (mid=0.000, lo=0.012, hi=1.000)

HISTORY GHS INV pivot: 0.000, amount: 1.36, local: 0.00 [0.00 1.00]

HISTORY GHS pivot: 0.092, amount: 3.39, local: -3.28 [0.00 1.00]

HISTORY GHS INV pivot: 0.034, amount: 1.36, local: 0.00 [0.00 1.00]

PIERSIDE= 'EAST' /

CAMID = '1E1E560D0B020900' /

ADCBITS = 16 / Bit depth of camera sensor ADC in current mode

BIASADU = 121.16593933105469 / ADU for bias level (no photons) at current sett

EGAINSAV= 0.26355 / Electrons per ADU at saved bit depth

RELGAIN = 2.964 / Multiplicative gain relative to minumum

RDNOISE = 1.77 / Read noise in electrons

SUBEXP = 60.000001 /

COLORTYP= 'RGB' /

DATE-END= '2025-09-13T07:56:37.3603735' / System Clock:Est. Frame End

DATE-AVG= '2025-09-13T07:44:56.0306173' / System Clock:Est. Frame Mid Point

JD_UTC = 2460931.822870725 / Julian Date at mid exposure

END

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 3963 / length of data axis 1

NAXIS2 = 3510 / 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 = '2025-09-23T18:06:37' / UTC date that FITS file was created

DATE-OBS= '2025-09-19T01:08:15.767743' / YYYY-MM-DDThh🇲🇲ss observation start,

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

EXPTIME = 960. / [s] Exposure time duration

OBSERVER= 'DaveMartin' / Observer name

FILTER = 'Open ' / Active filter name

FOCALLEN= 958.109 / [mm] Focal length

CENTALT = 19.5602777777778 / [deg] Altitude of telescope

CENTAZ = 185.030555555556 / [deg] Azimuth of telescope

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 3.76 / [um] Pixel X axis size

YPIXSZ = 3.76 / [um] Pixel Y axis size

INSTRUME= 'ZWO ASI2600MC Pro' / Instrument name

CCD-TEMP= -10.1 / [degC] CCD temperature

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

GAIN = 100 / Sensor gain

OFFSET = 12 / Sensor gain offset

CVF = 0.2636 / [e-/ADU] Electrons per A/D unit

FOCPOS = 19611 / [step] Focuser position

FOCTEMP = 19.8899993896484 / [degC] Focuser temperature

OBJECT = 'NGC6809 (M55)' / Name of the object of interest

AIRMASS = 2.96008439702911 / Airmass at frame center (Gueymard 1993)

SITELAT = 39.3488888888889 / [deg] Observation site latitude

SITELONG= -78.8116666666667 / [deg] Observation site longitude

OBJCTRA = '19 40 4.136' / [H M S] Image center Right Ascension

OBJCTDEC= '-30 56 43.248' / [D M S] Image center Declination

RA = 295.017232883375 / [deg] Image center Right Ascension

DEC = -30.9453466566413 / [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 = 1899.5 / Axis1 reference pixel

CRPIX2 = 1704.5 / Axis2 reference pixel

CRVAL1 = 294.997105055251 / [deg] Axis1 reference value

CRVAL2 = -30.9586685744109 / [deg] Axis2 reference value

LONPOLE = 180. / Native longitude of celestial pole

CDELT1 = -0.000224654408933106 / [deg] X pixel size

CDELT2 = 0.000225048284193237 / [deg] Y pixel size

PC1_1 = -0.35306538178811 / Linear transformation matrix (1, 1)

PC1_2 = -0.93559865122969 / Linear transformation matrix (1, 2)

PC2_1 = 0.935645481005566 / Linear transformation matrix (2, 1)

PC2_2 = -0.352941261223257 / 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 = -2.4729857380867E-07

A_1_1 = -4.39896300151425E-08

A_0_2 = -1.04638407485353E-07

A_3_0 = -3.23842515442074E-10

A_2_1 = 4.34793651916087E-12

A_1_2 = -3.24037808303716E-10

A_0_3 = 2.22997141442995E-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 = -2.72578109719343E-08

B_1_1 = -1.08043828433848E-07

B_0_2 = -1.1054034302183E-07

B_3_0 = -1.08042796508092E-12

B_2_1 = -3.1863856455706E-10

B_1_2 = 6.8574572965019E-12

B_0_3 = -3.23346481775344E-10

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

AP_0_0 = -0.00575586046975837

AP_1_0 = -1.59589095398704E-05

AP_0_1 = 7.94385544763556E-07

AP_2_0 = 2.51809679937172E-07

AP_1_1 = 4.48677408952687E-08

AP_0_2 = 1.06260067025743E-07

AP_3_0 = 3.28842959343902E-10

AP_2_1 = -4.50381982543623E-12

AP_1_2 = 3.29609065536176E-10

AP_0_3 = -2.39546234025188E-12

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

BP_0_0 = -0.0015123457622485

BP_1_0 = 5.36021635196922E-07

BP_0_1 = -1.12809047605467E-05

BP_2_0 = 2.77755076359616E-08

BP_1_1 = 1.09887071877365E-07

BP_0_2 = 1.11800551167147E-07

BP_3_0 = 1.0653486199894E-12

BP_2_1 = 3.23470105824258E-10

BP_1_2 = -7.16921801126466E-12

BP_0_3 = 3.27172949718206E-10

PLTSOLVD= T / Siril internal solver

HISTORY Plate Solve

HISTORY Crop (x=1225, y=282, w=3963, h=3510)

HISTORY Background extraction (Correction: Subtraction)

HISTORY Photometric CC (algorithm: SPCC)

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

HISTORY GHS ASINH pivot: 0.000, amount: 61.11 [0.00 1.00]

HISTORY GHS ASINH pivot: 0.000, amount: 9.37 [0.00 1.00]

HISTORY GHS pivot: 0.000, amount: 3.72, local: 0.00 [0.00 1.00]

HISTORY Asinh Transformation: (stretch= 0.0, bp=0.09609)

HISTORY Histogram Transf. (mid=0.015, lo=0.214, hi=1.000)

HISTORY GHS LINEAR BP: 0.08

HISTORY GHS INV pivot: 0.232, amount: 1.93, local: 0.00 [0.00 1.00]

HISTORY GHS pivot: 0.281, amount: 2.14, local: 0.00 [0.00 1.00]

HISTORY GHS LINEAR BP: 0.04

HISTORY Cosmic Clarity denoise (luminance, str=0.5)

HISTORY GHS INV pivot: 0.176, amount: 1.05, local: 0.00 [0.00 1.00]

HISTORY Photometric CC (algorithm: PCC)

HISTORY Cosmic Clarity sharpen (Stellar Only)

SUBEXP = 30 /

CAMID = '1E1E560D0B020900' /

PIERSIDE= 'EAST' /

ADCBITS = 16 / Bit depth of camera sensor ADC in current mode

BIASADU = 121.16593933105469 / ADU for bias level (no photons) at current sett

EGAINSAV= 0.26355 / Electrons per ADU at saved bit depth

RELGAIN = 2.964 / Multiplicative gain relative to minumum

RDNOISE = 1.77 / Read noise in electrons

COLORTYP= 'RGB' /

DATE-END= '2025-09-19T01:26:34.2946291' / System Clock:Est. Frame End

DATE-AVG= '2025-09-19T01:17:25.0311862' / System Clock:Est. Frame Mid Point

JD_UTC = 2460937.553761935 / Julian Date at mid exposure

END