NGC688 region with Samyang 135mm F1.8 AF on Sony A7R5

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 7974 / length of data axis 1

NAXIS2 = 6114 / 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

MIPS-HI = 65535 / Lower visualization cutoff

PROGRAM = 'Siril 1.4.0-beta3' / Software that created this HDU

DATE = '2025-07-20T11:43:15' / UTC date that FITS file was created

DATE-OBS= '2025-07-19T01:02:46.833217' / YYYY-MM-DDThh🇲🇲ss observation start,

IMAGETYP= 'Light ' / Type of image

ROWORDER= 'BOTTOM-UP' / Order of the rows in image array

EXPTIME = 30. / [s] Exposure time duration

TELESCOP= 'ZWO ' / Telescope used to acquire this image

FOCALLEN= 129.827 / [mm] Focal length

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

XPIXSZ = 3.75999999046326 / [um] Pixel X axis size

YPIXSZ = 3.75999999046326 / [um] Pixel Y axis size

INSTRUME= 'Sony ' / Instrument name

STACKCNT= 16 / Stack frames

LIVETIME= 480. / [s] Exposure time after deadtime correction

EXPSTART= 2460875.5435976 / [JD] Exposure start time (standard Julian date)

EXPEND = 2460875.55176284 / [JD] Exposure end time (standard Julian date)

OBJECT = 'NGC ' / Name of the object of interest

SITELAT = 37.1751 / [deg] Observation site latitude

SITELONG= -7.53261 / [deg]

Done