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NGC 2903

  • May 14, 2013
NGC 2903


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

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