SIMPLE = T / file does conform to FITS standardBITPIX = -32 / number of bits per data pixelNAXIS = 3 / number of data axesNAXIS1 = 6248 / length of data axis 1NAXIS2 =

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

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

BSCALE = 1 / default scaling factor

DATE = '2025-02-23T15:17:07' / UTC date that FITS file was created

DATE-OBS= '2025-02-22T20:05:25.724000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI2600MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'SKYVISION' / 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= 984 / Camera focal length

CCD-TEMP= -9.8 / CCD temp in C

SET-TEMP= -10 / Temperature setting in C

EXPTIME = 240 / Exposure time [s]

STACKCNT= 47 / Stack frames

LIVETIME= 11280 / Exposure time after deadtime correction

EXPSTART= 2.46073e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46073e+006 / Exposure end time (standard Julian date)

FILTER = 'Starless' / Active filter name

IMAGETYP= 'LIGHT ' / Type of image

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

CVF = 0.242863 / Conversion factor

Done