NGC 6888-1

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 2500 / length of data axis 1

NAXIS2 = 2380 / 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 = '2023-09-26T15:26:55' / UTC date that FITS file was created

DATE-OBS= '2023-09-26T02:37:06.913890' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI533MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'Celestron AVX/CGE/CGEM/CGX' / telescope used to acquire this image

ROWORDER= 'BOTTOM-UP' / 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= 1392.94 / Camera focal length

CCD-TEMP= -20 / CCD temp in C

EXPTIME = 120 / Exposure time [s]

STACKCNT= 26 / Stack frames

LIVETIME= 3120 / Exposure time after deadtime correction

EXPSTART= 2.46021e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46021e+06 / Exposure end time (standard Julian date)

IMAGETYP= 'Light ' / Type of image

CVF = 0.0503996 / Conversion factor (e-/adu)

GAIN = 360 / Camera gain

OFFSET = 70 / Camera offset

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 = '20 12 17.958' / Image center Right Ascension (hms)

OBJCTDEC= '+38 20 40.198' / Image center Declination (dms)

RA = 303.075 / Image center Right Ascension (deg)

DEC = 38.3445 / Image center Declination (deg)

CRPIX1 = 1250 / Axis1 reference pixel

CRPIX2 = 1190 / Axis2 reference pixel

CRVAL1 = 303.075 / Axis1 reference value (deg)

CRVAL2 = 38.3445 / Axis2 reference value (deg)

CDELT1 = -0.000154651 / X pixel size (deg)

CDELT2 = 0.00015467 / Y pixel size (deg)

PC1_1 = -0.988548 / Linear transformation matrix (1, 1)

PC1_2 = -0.150724 / Linear transformation matrix (1, 2)

PC2_1 = 0.150887 / Linear transformation matrix (2, 1)

PC2_2 = -0.988579 / Linear transformation matrix (2, 2)

PLTSOLVD= T / Siril internal solve

HISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3

HISTORY .000), additive+scaling normalized input, normalized output, no image we

HISTORY ighting, equalized RGB

HISTORY TOP-DOWN mirror

HISTORY SCNR (type=average neutral, amount=1.00, preserve=true)

HISTORY Crop (x=354, y=253, w=2500, h=2380)

HISTORY Background extraction (Correction: Subtraction)

HISTORY Photometric CC

HISTORY Asinh Transformation: (stretch= 405.0, bp=0.00000)

END

Done