| object(s) | galaxy M 101 |
| constellation | Ursa Major, the great bear |
| equipment | ASA Astrograph 10" at f/2,8, Astro modified Canon EOS 40D |
| exposure | 36 x 300 sec Light at 800 ASA unguided |
| date | Mar 07 2010, Engelhardsberg Germany |
| conditions | stars to 5m5 |
| image processing | DeepSkyStacker 3.3.2, Photoshop CS4, PixInsight 1.5 |
| remarks | the firewheel galaxy |