Site and content copyright Robert Allevo 2002-2008
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NGC 7139 |
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Technical Details |
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| Optics | 12.5" RCOS operating at f/9 (2857mm) |
| Mount | Paramount ME |
| Camera | SBIG ST-10XME, CFW8-A |
| Filters | Tru Balance LRGB. |
| Date | Sept. 25, 2006 |
| Exposure | LRGB = 120:40:40:40 minutes |
| Processing | MaximDl, Photoshop CS |
| Guiding | ST- 402 / Sky90 |
| Binning | Lum - 1x1, RGB - 2x2 |
| Location | My back yard observatory in East Hartland, Ct. |