Site and content copyright Robert Allevo 2002-2010
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M51 |
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Technical Details |
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| Optics | 12.5" RCOS operating at f/9 |
| Mount | Paramount ME |
| Camera | SBIG ST-10XME, CFW8-A |
| Filters | Tru Balance LRGB. |
| Date | July 2 & 4, 2005 |
| Exposure | LRGB = 120:30:30:30 minutes |
| Processing | MaximDL, Sigma Reject, Lucy-Richardson Deconvolution, Photoshop CS |
| Guiding | Sky90 at 800mm with ST-402 |
| Binning | Lum - 1x1, RGB - 2x2 |
| Location | SkyFoto Observatory in East Hartland, Ct. |
| Notes | M51 is about 37 million light years distant. It is comprised of two galaxies that are interacting. |
Previous Attempt
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