Andromeda Galaxy Reprocess

Quick reprocess of the Andromeda Galaxy. This one shows slightly more detailed dust lanes, which circle around the galaxy along its spiral arms. Each spiral arm contains up to several hundred billion stars.

 

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4754 / length of data axis 1

NAXIS2 = 3125 / 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= 0.98909 / 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 = '2024-01-04T10:00:24' / UTC date that FITS file was created

DATE-OBS= '2024-01-02T05:04:58' / YYYY-MM-DDThh🇲🇲ss observation start, UT

INSTRUME= ' ' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= ' ' / telescope used to acquire this image

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

XPIXSZ = 4.28 / X pixel size microns

YPIXSZ = 4.28 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 293.209 / Camera focal length

CCD-TEMP= 0 / CCD temp in C

EXPTIME = 29.6 / Exposure time [s]

STACKCNT= 48 / Stack frames

LIVETIME= 2846.8 / Exposure time after deadtime correction

EXPEND = 2.46031e+06 / Exposure end time (standard Julian date)

FILTER = 'mixed ' / Active filter name

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 = '00 43 39.307' / Image center Right Ascension (hms)

OBJCTDEC= '+41 11 18.172' / Image center Declination (dms)

RA = 10.9138 / Image center Right Ascension (deg)

DEC = 41.1884 / Image center Declination (deg)

CRPIX1 = 2377 / Axis1 reference pixel

CRPIX2 = 1562.5 / Axis2 reference pixel

CRVAL1 = 10.9138 / Axis1 reference value (deg)

CRVAL2 = 41.1884 / Axis2 reference value (deg)

CDELT1 = -0.000836221 / X pixel size (deg)

CDELT2 = 0.000836468 / Y pixel size (deg)

PC1_1 = -0.00657215 / Linear transformation matrix (1, 1)

PC1_2 = -1.00027 / Linear transformation matrix (1, 2)

PC2_1 = 0.999684 / Linear transformation matrix (2, 1)

PC2_2 = -0.00672207 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

END

 

Done