The second image taken by Bob Birket from the great dark sky location of SkyPi Online Observatory in Pie Town, New Mexico. This image of NGC 2903 is just over 6 hours total time in Bortle 1 skies. There were some high clouds from time to time, with little interference.
NGC2903 is approximately 30 million light years away in the constellation Leo.
Imaging telescopes or lenses:RC Optical Systems RCOS 12.5 AstrographImaging cameras:SBIG STL 11000MMounts: Software Bisque Paramount MXGuiding telescopes or lenses:RC Optical SystemsRCOS 12.5 AstrographGuiding cameras:SBIG STL 11000MSoftware:Diffraction Limited MaximDL5, Adobe PhotoshopCS5Filters:Baader Planetarium LRGB Filter SetAccessories:Alnitak Flat screen
Resolution: 2500×1752
Date: May 4, 2013
Frames:
Baader Planetarium LRGB Filter Set: 15×600″ bin 2×2
Baader Planetarium LRGB Filter Set: 14×900″ -30C bin 1×1
Integration: 6.0 hours
Darks: ~8
Flats: ~6
Bias: ~30
Avg. Moon age: 23.73 days
Avg. Moon phase: 33.50%
Bortle Dark-Sky Scale: 1.00
Temperature: 10.00
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