| M13 | Great Hercules Cluster NGC 6205 |
| Globular Cluster | Hercules |
| Magnitude 5.3 | Diameter 21min |
| 11/09/2003 |
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| Charlotte | Prime focus | f/4 |
| 800mm | 16x | Motor drive and manual guiding |
| Canon Digital Rebel | 200 ISO | 4 minutes 23 seconds |
| 3 pictures (88s + 91s + 84s) stacked, aligned and processed with Photoshop. |
| 06/19/2004 |
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| Walnut Cove overlook | Prime focus | f/4 |
| 800mm | 16x | Motor drive and manual guiding |
| Canon Digital Rebel | 1600 ISO | 1 minute 42 seconds |
| 3 pictures (34s + 34s + 34s) stacked, aligned and processed with Photoshop, with another 34s picture to reduce the noise. |
| 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 averaged. |
| 06/06/2007 |
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| Charlotte | Prime focus | f/6.3 |
| 14800mm | 33x | Motor drive and automatic guiding |
| Canon 20Da | 1600 ISO | 32 minutes |
| 16 pictures calibrated, aligned and stacked with ImagePlus, processed with Photoshop. |
| Back |