Site and content copyright Robert Allevo 2002-2011
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NGC 6888 |
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CRESCENT NEBULA in CYGNUS |
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Technical Details |
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| Optics | 12.5" RCOS operating at f/6.5 |
| Mount | Paramount ME |
| Camera | SBIG ST-10XME, CFW8-A |
| Filters | Tru Balance LRGB. |
| Date | August 2, 2005 |
| Exposure | RRGB = 20:15:15:15 minutes (all that the weather would allow) |
| Processing | MaximDL, Photoshop CS |
| Guiding | Sky90 at 800mm with ST-402 |
| Binning | RLum - 1x1, RGB - 2x2 |
| Location | SkyFoto Observatory in East Hartland, Ct. |
| Notes | The Crescent Nebula is about 4700 light years away. |
Previous Attempt
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NGC6888 |
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12" f/6.1 ST8XE / CFW8 / AO-7 Lum (B+R)=8x10 RG=3x10 B=5x10 RGB=2x2 Data taken on Sep. 21, 2003 |
