IC 443

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 6235 / length of data axis 1

NAXIS2 = 4153 / length of data axis 2

NAXIS3 = 3 / length of data axis 3

EXTEND = T / FITS dataset may contain extensions

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

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

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

BSCALE = 1 / default scaling factor

DATE = '2025-03-06T17:09:22' / UTC date that FITS file was created

DATE-OBS= '2025-02-28T23:17:11.450000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MM Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= '75/400 ' / 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= 400 / Camera focal length

CCD-TEMP= -4.7 / CCD temp in C

SET-TEMP= -5 / Temperature setting in C

EXPTIME = 100 / Exposure time [s]

STACKCNT= 868 / Stack frames

LIVETIME= 98640 / Exposure time after deadtime correction

EXPSTART= 2.46074e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46074e+006 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

IMAGETYP= 'LIGHT ' / Type of image

OBJECT = 'NGC 2174 1 MARS 2025' / Name of the object of interest

CVF = 0.190705 / Conversion factor (e-/adu)

GAIN = 121 / Camera gain

OFFSET = 1 / Camera offset

SITELAT = 47.6821 / [deg] Observation site latitude

SITELONG= 1.77793 / [deg] Observation site longitude

SITEELEV= 93 / [m] Observation site elevation

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 = '06 19 17' / Image center Right Ascension (hms)

OBJCTDEC= '+22 37 17' / Image center Declination (dms)

RA = 94.8504 / Image center Right Ascension (deg)

DEC = 22.5723 / Image center Declination (deg)

AIRMASS = 1.23959 / Airmass

HISTORY RGB composition

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

HISTORY Neutralisation du fond du ciel

HISTORY Étalonnage des couleurs

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

HISTORY Neutralisation du fond du ciel

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

HISTORY Transf. histogramme (mid=0.510, lo=0.039, hi=1.000)

END

Done