1 hour of 4 second lights, and 100 biases.
21 April 2024. Waxing Gibbous moon (12.5 days old)
Skywatcher 350 goto, ZWO ASI2600MC PRO, Starizona Nexus focal reducer, and ZWO Duo-Band filter.
Telescope and camera controlled by N.I.N.A.

SIMPLE  =                    T / file does conform to FITS standardBITPIX  =                  -32 / number of bits per data pixelNAXIS   =                    3 / number of data axesNAXIS1  =                 1902 / length of data axis 1NAXIS2  =                 1224 / length of data axis 2NAXIS3  =                    3 / length of data axis 3EXTEND  =                    T / FITS dataset may contain extensionsCOMMENT   FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT   and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359HBZERO   =                    0 / offset data range to that of unsigned shortBSCALE  =                    1 / default scaling factorDATE    = '2024-04-21T23:54:49' / UTC date that FITS file was createdDATE-OBS= '2024-04-21T10:56:08.352000' / YYYY-MM-DDThh:mm:ss observation start, INSTRUME= 'ZWO ASI2600MC Pro'  / instrument nameOBSERVER= '        '           / observer nameTELESCOP= 'SkyWatcher 350'     / telescope used to acquire this imageROWORDER= 'TOP-DOWN'           / Order of the rows in image arrayXPIXSZ  =                 7.52 / X pixel size micronsYPIXSZ  =                 7.52 / Y pixel size micronsXBINNING=                    2 / Camera binning modeYBINNING=                    2 / Camera binning modeFOCALLEN=                 1650 / Camera focal lengthCCD-TEMP=                  -15 / CCD temp in CSET-TEMP=                  -15 / Temperature setting in CEXPTIME =                    4 / Exposure time [s]STACKCNT=                  905 / Stack framesLIVETIME=                 3620 / Exposure time after deadtime correctionEXPSTART=         2.46042e+006 / Exposure start time (standard Julian date)EXPEND  =         2.46042e+006 / Exposure end time (standard Julian date)IMAGETYP= 'LIGHT   '           / Type of imageOBJECT  = 'Centaurus A'        / Name of the object of interestCVF     =            0.0242863 / Conversion factor (e-/adu)GAIN    =                  300 / Camera gainOFFSET  =                    1 / Camera offsetSITELAT =               -37.95 / [deg] Observation site latitudeSITELONG=              145.017 / [deg] Observation site longitudeSITEELEV=                   30 / [m] Observation site elevationCTYPE1  = 'RA---TAN'           / Coordinate type for the first axisCTYPE2  = 'DEC--TAN'           / Coordinate type for the second axisCUNIT1  = 'deg     '           / Unit of coordinatesCUNIT2  = 'deg     '           / Unit of coordinatesEQUINOX =                 2000 / Equatorial equinoxOBJCTRA = '13 25 28'           / Image center Right Ascension (hms)OBJCTDEC= '-43 01 09'          / Image center Declination (dms)RA      =              201.343 / Image center Right Ascension (deg)DEC     =             -43.0437 / Image center Declination (deg)AIRMASS =              1.07689 / AirmassHISTORY mean stacking with winsorized sigma clipping rejection (low=3.000 high=3HISTORY .000), additive+scaling normalized input, normalized output, no image weHISTORY ighting, unequalized RGBHISTORY Crop (x=633, y=481, w=1902, h=1224)HISTORY Background neutralizationHISTORY Color CalibrationHISTORY Color CalibrationHISTORY Color CalibrationHISTORY SCNR (type=average neutral, amount=1.00, preserve=true)HISTORY SCNR (type=average neutral, amount=1.00, preserve=true)HISTORY Background extraction (Correction: Subtraction)HISTORY Histogram Transf. (mid=0.000, lo=0.004, hi=1.000)END

Centaurus A is a galaxy in the constellation of Centaurus. It was discovered in 1826 by Scottish astronomer James Dunlop from his home in Parramatta, New South Wales, Australia. It is one of the closest radio galaxies to Earth.