IC5146: Cocoon nebula in Cygnus
IC5146: Cocoon nebula in Cygnus |
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Cocoon Nebula |
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Object Data |
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| Object type: | Reflection/Emission Nebula | ||
| Size: | 30 light years across | ||
| Magnitude: | 7.2 | ||
| Constellation: | Cygnus | ||
| Distance: | 4000 ly | ||
| Notes: |
The Cocoon Nebula both reflects radiated stardust (grey dust
surrounding the nebula) and emitts hydrogen alpha (color mapped as red). Inside the nebula is a newly developing cluster of stars,
some only a few thousand years old. The designation IC 5146 refers to the star cluster while the nebula itself is listed as Sharpless 2-125.
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Exposure Data |
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| Date: | 08/02 - 08/03//22 | ||
| Location: | Lockwood Observatory 2, Descanso, CA | ||
| Telescope: | DSI RC10c; fl 1867mm at f/7.3 | ||
| Camera: | FLI 6303e with Astrodon Ha (3nm) and LRGB filters | ||
| Mount: | AP1100 GTO3 | ||
| Exposure times: | 19 x 15 min (4.75 hrs) of Ha; 5 x 10 min (50 min) Lum, 5 x 5 min (25 min) each RGB | ||
| Exposure time total: | 6 hrs 50 min | ||
| Notes: |
Reduced to 50% of original FOV = 47.8 x 34.6 arcmin. Image Scale = 0.99 arcsec/pixel |
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