| M18 | Black Swan NGC 6613 |
| Open Cluster | Sagittarius |
| Magnitude 6.9 | Diameter 5min |
| 07/16/2004 |
|
| Doughton Park | Prime focus | f/4 |
| 800mm | 16x | Motor drive and manual guiding |
| Canon Digital Rebel | 400 ISO | 4 minutes 3 seconds |
| Stack of 2 pictures (120s + 123s) aligned with Photoshop, curves and levels adjusted to get rid of the light pollution and the slight shift to red. |
| Back |