Site and content copyright Robert Allevo 2002-2008
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NGC 6543 |
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CATS EYE Nebula in DRACO |
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Technical Details |
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| Optics | 12 1/2" RCOS operating at f/9 (2857mm) |
| Mount | Paramount ME |
| Camera | SBIG ST-10XME, CFW8-a |
| Filters | Tru Balance LRGB. |
| Date | Sept. 17, 18, 19, 2007 |
| Exposure | LRGB = 76: 60: 60: 60 minutes |
| Processing | MaximDl with RC Console, Sharpened DDP, Photoshop CS |
| Guiding | ST-402 mounted on Takahashi Sky90 |
| Binning | L : 1x1 RGB : 1x1 |
| Location | SkyFoto observatory in East Hartland, Ct. |
| Notes |
This nebula is about 1000 years old and may have two central stars orbiting one another. For now, even the HST cannot resolve the two. I found this object to behave strangely with regard to screen stretch. In fact the ONLY way to show it was by way of SHARPENED DDP in MaximDL. Otherwise it appeared to be severely overexposed. |