| M57 | Ring Nebula NGC 6720 |
| Planetary Nebula | Lyra |
| Magnitude 8.8 | Diameter 76seconds |
| 11/09/2003 |
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| Charlotte | Prime focus | f/4 |
| 800mm | 16x | Motor drive and manual guiding |
| Canon Digital Rebel | 200 ISO | 3 minutes 26 seconds |
| 3 pictures (68s + 68s + 70s) stacked, aligned and processed with Photoshop. |
| 09/08/2005 |
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| Charlotte | Prime focus | f/6.3 |
| 900mm | 20x | Motor drive |
| Canon 20D | 1600 ISO | 13 minutes 20 seconds |
| 40 pictures stacked, aligned and processed with Photoshop. |
| 06/21/2007 |
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| Charlotte | Prime focus | f/6.3 |
| 1480mm | 33x | Motor drive and automatic guiding |
| Canon 20Da | 1600 ISO | 30 minutes |
| 15 pictures stacked, aligned and processed with Photoshop. |
| Back |