

0bject | Sh2-200 Planetary nebula in Camelopardalis (PN G138.1+04.1) and Tr 3 Open cluster |
Date | November 9-14, 2024 |
Exposure | HαLRGB 455:175:60:60:60 (13.2 hours, 1/2 crop) |
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 CS6, Astronomy Tools, Topaz DeNoiseAI |
Comments | Poor seeing (FWHM 3.9); acquired with CCD Commander and MaximDL from Animas, NM |

0bject | Sh2-200 Planetary nebula in Camelopardalis (PN G138.1+04.1) |
Date | August 16-20, 2015 |
Exposure | HαRGB 480:60:60:60 (cropped) |
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 seeing; acquired with CCD Commander |