| 0bject | Abell 39 Planetary nebula in Hercules (PK 47+42.1) |
| Date | July 7, 2012 |
| Exposure | LRGB 30:30:30:60 (cropped) |
| Camera | STL11000M with AstroDon Gen II filters (water assisted cooling) |
| Telescope | ASA 10N f/3.7 on AP900GTO CP3 |
| Guiding | External guide head with 50mm MiniBorg |
| Processing | MaximDL, Photoshop CS5, GradientXterminator, AstroActions |
| Comments | Very warm (~80�F); acquired with CCD Commander |
Full res crop
Full res crop X 150%| 0bject | Abell 39 Planetary nebula in Hercules (PK 47+42.1) |
| Date | June 20-24, 2010 |
| Exposure | LRGB 90:45:45:45 (cropped) |
| Camera | STL11000M with Astronomik filters (water assisted cooling) |
| Telescope | ASA 10N f/3.7 on AP900GTO CP3 |
| Guiding | External guide head with 50mm MiniBorg |
| Processing | MaximDL, Photoshop CS3, GradientXterminator, AstroActions |
| Comments | Warm but with moderate seeing; nearly full moon on 2 evenings |