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 |