0bject | NGC 1491 and Sh2-206 Emission nebulae in Perseus (King 7 open cluster - upper right) |
Date | October 11-13, 2013 |
Exposure | HαLRGB 600:60:30:30:30 (cropped, Hα+R75/25 for luminance; 12.5 hours) |
Camera | STL11000M with AstroDon Gen II filters |
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; waxing moon high in the sky; acquired with CCD Commander |