| Object: | M 20 |
| Date: | 07.-19.09.2007 |
| Scope, mount, camera: | 12.5" Newtonian, f/5.1, MAM50, ST-10XME |
| Filter, exposure time: | LRGB, L = 18*60s, RGB=(5x5x8)*300s |
| Total exposure time: | 1h48min |
| Location: | La Palma, Roque de los muchachos |
| Comments: | Image seeing: 1.6" Data reduction with THELI, colour composition in PS. |