Crop 1.3X Ha
0bject | NGC 7538, Sh2-158, Sh2-159 in Cassiopeia |
Date | October 5-18, 2014 |
Exposure | HaLRGB 585:35:40:30 (cropped; 11.5 hours) |
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 CS6, GradientXterminator, AstroActions |
Comments | Moderate to good seeing; acquired with CCD Commander |