Last updated on 10/26/2014



0bject Sh2-140 Emission nebula in Cepheus (& vdB 153 Reflection Nebula)
Date September 3-9, 2012
Exposure HαRGB 720:30:30:150 (unbinned, Hα+R 80/20 for red)
Camera STL11000M with AstroDon Gen II filters (water-assisted cooling)
Telescope ASA 10N f/3.7 on AP900GTO CP3
Guiding Remote guide head with MiniBorg 50 mm
Processing MaximDL, Photoshop CS5, GradientXterminator, AstroActions
Comments Moderate seeing; nearly full moon in the sky; acquired with CCD Commander