| object | Horsehead nebula, IC 434 |
| constellation | Orion |
| equipment | ASA Astrograph 10" at f/2,8, Astro modified Canon EOS 40D, EOS Clip Filter H-Alpha 12nm |
| exposure | 3 x 600 sec at 800 ASA unguided |
| date | Dez 26 2009 Engelhardsberg Germany |
| conditions | clouds, moon, stars to 3m5 |
| image processing | DeepSkyStacker 3.3.2, Photoshop CS4, Fitswork4 |
| remarks | only 3 exposures makes an extreme background noise, full_size doesnt make really sense ... |