| M51 | Whirlpool Galaxy NGC 5194 |
| Spiral Galaxy | Canes Venatici |
| Magnitude 8.4 | Diameter 11min |
| 03/12/2004 |
|
| Doughton Park | Prime focus | f/4 |
| 800mm | 16x | Motor drive and manual guiding |
| Canon Digital Rebel | 400 ISO | 11 minutes 36 seconds |
| 4 pictures (177s + 176s + 175s + 168s) stacked, aligned and processed with Photoshop. |
| 04/27/2006 |
 |
| Doughton Park | Prime focus | f/10 |
| 2350mm | 47x | Motor drive and manual guiding |
| Canon 20D | 1600 ISO | 27 minutes |
| 9 pictures stacked with Photoshop. The long focal length of the Celestron C9.25 makes it very difficult to guide manually, and requires very long exposure time to see something. |
| 04/21/2007 |
 |
| Charlotte | Prime focus | f/6.3 |
| 1480mm | 30x | Motor drive and automatic guiding |
| Canon 20Da | 1600 ISO | 42 minutes |
| 24 pictures stacked together. Light pollution removed with Photoshop, picture is cropped. Very good transparency, no wind. |
| 05/19/2007 |
 |
| Doughton Park | Prime focus | f/6.3 |
| 1480mm | 30x | Motor drive and automatic guiding |
| Canon 20Da | 1600 ISO | 1 hour 27 minutes |
| 29 pictures stacked together. Light pollution removed with Photoshop, picture is cropped. Very good transparency, no wind. |
| Back |