M31 - The Great Andromeda Galaxy
| Date/Place | 2009-10-17 at Pian dell'Armà (PV) |
| Coordinates | AR 00h 42m 44s DEC +41° 16'09″ |
| Instrument | Takahashi FSQ85ED |
| Camera | Modified 450D |
| Integration | Stack of 20 exposure of 10 minutes each, in RGB and 3 exposures of 20 minutes with H-alpha filtre. The H-alpha exposure was then mixed with the red channel of RGB in order to enhance the emission nebula on the spiral arms. |
| Description | The only other galaxy that may be seen by naked eye on the Northern Emisphere |
| Comment | First time using dithering between the exposures. |
