BITPIX = -32 / number of bits per data pixel NAXIS = 3 / number of data axes NAXIS1 = 3232 / length of data axis 1 NAXIS2 = 3232 / length of data axis 2 NAXIS3 = 3 / length of data axis 3 EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy COMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H MIPS-FHI= 1 / Upper visualization cutoff MIPS-FLO= 0 / Lower visualization cutoff BZERO = 0 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor DATE = '2024-08-22T09:20:00' / UTC date that FITS file was created DATE-OBS= '2024-08-22T07:34:34.310000' / YYYY-MM-DDThh:mm:ss observation start, INSTRUME= 'T73 ZWO ASI2600MM' / instrument name OBSERVER= 'Nils Kopal' / observer name TELESCOP= 'iTelescope 72' / 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= 2551.2 / Camera focal length CCD-TEMP= -10 / CCD temp in C SET-TEMP= -10 / Temperature setting in C EXPTIME = 120 / Exposure time [s] STACKCNT= 14 / Stack frames LIVETIME= 1680 / Exposure time after deadtime correction EXPSTART= 2.46054e+006 / Exposure start time (standard Julian date) EXPEND = 2.46054e+006 / Exposure end time (standard Julian date) FILTER = 'mixed ' / Active filter name