M42 - Orion Nebula

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2230 / length of data axis 1

NAXIS2 = 1916 / 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 = '2025-01-17T11:13:35' / UTC date that FITS file was created

DATE-OBS= '2025-01-15T19:22:49.816000' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'DWARFIII' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'DWARFIII' / telescope used to acquire this image

XPIXSZ = 2 / X pixel size microns

YPIXSZ = 2 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 147.99 / Camera focal length

EXPTIME = 30 / Exposure time [s]

STACKCNT= 253 / Stack frames

LIVETIME= 7590 / Exposure time after deadtime correction

EXPSTART= 2.46069e+006 / Exposure start time (standard Julian date)

EXPEND = 2.46069e+006 / Exposure end time (standard Julian date)

OBJECT = 'M 42 ' / Name of the object of interest

GAIN = 60 / Camera gain

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 /

Done