NGC 7635 Bubble Nebula with OIII-Ha Optolong L-eXtreme filter Total integration time=1860s 31x60sec subs

Celestron C8 SCT with Starizona Hyperstar V 4 at F/1.9 , ZWO ASI294MC Pro camera, IDAS L filter, ASIAir Plus guiding and acquisition. Siril processing, Photoshop and Topaz tweaking

 

 

SIMPLE = T / file does conform to FITS standard

BITPIX = -32 / number of bits per data pixel

NAXIS = 3 / number of data axes

NAXIS1 = 4144 / length of data axis 1

NAXIS2 = 2822 / 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 = '2023-07-06T22:32:50' / UTC date that FITS file was created

DATE-OBS= '2023-07-06T07:55:16.775718' / YYYY-MM-DDThh🇲🇲ss observation start,

INSTRUME= 'ZWO ASI294MC Pro' / instrument name

OBSERVER= ' ' / observer name

TELESCOP= 'EQMod Mount' / telescope used to acquire this image

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

XPIXSZ = 4.63 / X pixel size microns

YPIXSZ = 4.63 / Y pixel size microns

XBINNING= 1 / Camera binning mode

YBINNING= 1 / Camera binning mode

FOCALLEN= 390.3 / Camera focal length

CCD-TEMP= -10 / CCD temp in C

EXPTIME = 60 / Exposure time [s]

STACKCNT= 31 / Stack frames

LIVETIME= 1860 / Exposure time after deadtime correction

EXPSTART= 2.46013e+06 / Exposure start time (standard Julian date)

EXPEND = 2.46013e+06 / Exposure end time (standard Julian date)

IMAGETYP= 'Light ' / Type of image

CVF = 0.399 / Conversion factor (e-/adu)

GAIN = 200 / Camera gain

Done