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Crux and Coalsack

Uploaded by triviniu , Mar 26 2023 07:20 PM

Owner: triviniu (View all images and albums)
Uploaded: Mar 26 2023 07:20 PM
Taken: 2023:03:26 17:34:42
Views: 190
Album: Deep Sky & Wide Field

About 2h45m worth of 30sec exposures of the Southern Cross.

- Camera: Pentax Kp APS-C DSLR
- "Telescope": SMC Pentax-D FA 100mm F2.8 Macro WR (at full aperture, so effectively a 35mm telescope)
- Mount: Tripod w/ Vixen POLARIE tracker

Image META information

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COMMENT.0	SIMPLE = T / file does conform to FITS standard BITPIX = 20 / number of bits per data pixel NAXIS = 3 / number of data axes NAXIS1 = 6028 / length of data axis 1 NAXIS2 = 4032 / 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-HI = 65535 / Upper visualization cutoff MIPS-LO = 0 / Lower visualization cutoff BZERO = 0 / offset data range to that of unsigned short BSCALE = 1 / default scaling factor DATE = '2023-03-26T19:48:58' / UTC date that FITS file was created DATE-OBS= '2023-03-26T02:36:01' / YYYY-MM-DDThh:mm:ss observation start, UT INSTRUME= 'Pentax KP' / instrument name OBSERVER= ' ' / observer name TELESCOP= ' ' / telescope used to acquire this image XPIXSZ = 3.92 / X pixel size microns YPIXSZ = 3.92 / Y pixel size microns XBINNING= 1 / Camera binning mode YBINNING= 1 / Camera binning mode FOCALLEN= 100 / Camera focal length EXPTIME = 29.98 / Exposure time [s] STACKCNT= 324 / Stack frames LIVETIME= 9645.82 / Exposure time after deadtime correction EXPSTART= 2.46003e+06 / Exposure start time (standard Julian date) EXPEND = 2.46003e+06 / Exposure end time (standard Julian date) APERTURE= 2.8 / Aperture of the instrument ISOSPEED= 6400 / ISO camera setting HISTORY mean stacking with GESDT rejection (outliers=0.300 significance=0.050), HISTORY Background extraction (Correction: Subtraction) HISTORY Background neutralization HISTORY Color Calibration HISTORY Histogram Transf. (mid=0.283, lo=0.189, hi=1.000) END
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Crux and Coalsack

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