NGC 7023 is also known as the Iris Nebula, Caldwell 4, or LBN 487, and is a
cluster/reflection nebula in Cepheus. It has an apparent size of 18 arc minutes and is
located at a distance of about 1,300 light years.
Date: Sep 15,20,24 Oct 2,7,8,10,12 2010
Location: Blue Mountain Vista Observatory, New Ringgold PA
Optics: Starizona Hyperion astrograph, 12.5 inch/2529 mm focal length
Mount: Paramount ME
Camera: STL 11000
Guiding: self guided
Exposure: L 58x5min, R 42x5 min, G 36x5 min, B 33x5 - L unbinned, Color Bin2
Total exposure of 14 hrs
Processing: Image acquisition using CCD Autopilot. Initial processing was done using
Maxim DL with subsequent processing with Photoshop.
Blue Mountain Vista Observatory New RInggold PA
NGC 7023 The Iris Nebula