| M3 | NGC 5272 |
| Globular Cluster | Canes Venatici |
| Magnitude 5.9 | Diameter 19 min |
| 04/04/2005 |
|
| Doughton Park | Prime focus | f/4 |
| 800mm | 16x | Motor drive and manual guiding |
| Canon 20D | 800 ISO | 3 minutes |
| One single picture processed with Photoshop. |
| 04/10/2005 |
 |
| Doughton Park | Prime focus | f/4 |
| 800mm | 16x | Motor drive and manual guiding |
| Canon 20D | 800 ISO | 9 minutes |
| Three pictures processed with Photoshop. |
| 04/27/2006 |
 |
| Doughton Park | Prime focus | f/10 |
| 2350mm | 47x | Motor drive and manual guiding |
| Canon 20D | 1600 ISO | 24 minutes |
| 8 pictures stacked together. Manually guiding the Celestron C9.25 is very difficult. |
| 04/22/2007 |
 |
| Charlotte | Prime focus | f/6.3 |
| 1480mm | 30x | Motor drive and automatic guiding |
| Canon 20Da | 1600 ISO | 20 minutes |
| 10 pictures stacked together. No wind, very good transparency from light polluted Charlotte (limiting visual magnitude 4.7). Image cropped. |
| 06/21/2007 |
 |
| Charlotte | Prime focus | f/6.3 |
| 1480mm | 30x | Motor drive and automatic guiding |
| Canon 20Da | 1600 ISO | 42 minutes |
| 21 pictures stacked together. No wind, good transparency from light polluted Charlotte (limiting visual magnitude 4.7). Image cropped. |
| Back |