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I agreeImaging telescope or lens:Celestron Newtonian 8"
Imaging camera:ZWO ASI 1600MM-Cool Pro
Mount:Celestron CGEM DX
Guiding telescope or lens:Celestron GuideScope 80mm f/7.5
Guiding camera:Orion Starshoot Autoguider
Software:PHD 2, Main Sequence Software Sequence Generator Pro, PixInsight 1.8 Ripely
Filters:ZWO Lum 31mm, ZWO Blue 31mm, ZWO Green 31mm, ZWO RED 31mm
Accessories:Baader 2" MPCC Mark III Multi-Purpose Coma Corrector, ZWO EFW 31mm
Resolution: 2048x1575
Dates:May 18, 2019
Frames:
ZWO Blue 31mm: 34x60" (gain: 76.00) -10C bin 1x1
ZWO Green 31mm: 35x60" (gain: 76.00) -10C bin 1x1
ZWO Lum 31mm: 214x30" (gain: 76.00) -10C bin 1x1
ZWO RED 31mm: 35x60" (gain: 76.00) -10C bin 1x1
Integration: 3.5 hours
Darks: ~50
Flats: ~50
Bias: ~200
Avg. Moon age: 14.36 days
Avg. Moon phase: 99.81%
Bortle Dark-Sky Scale: 5.00
Astrometry.net job: 2702402
RA center: 17h 17' 6"
DEC center: +43° 8' 9"
Pixel scale: 1.229 arcsec/pixel
Orientation: 51.073 degrees
Field radius: 0.441
Locations: Home, Batroun, North, Lebanon
Data source: Backyard
Messier 92 is a globular cluster of stars in the northern constellation of Hercules. It is at a distance of about 26,700 light-years away from Earth and has an estimated mass of up to 330,000 solar masses. The cluster is approaching us at 112 km/s.
With an estimated age of 14.2 billion years – almost the same age as the universe itself – M92 is one of the oldest clusters known and possibly the single oldest globular in the Milky Way.
I have decided to go for a globular cluster for the first time, as it was a clear weekend evening with the full moon wandering the skies and not very far from the imaging area. I had a rough time with the gradients from the light pollution, but it is what it is.
Clear Skies!
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