| IC5146 / Diffused Nebula, type 1 E |
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| R.A. | 21h 53m 24.0s (2000.0) |
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| Dec. | +47°16' 00" (2000.0) |
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| Apparent Size | 12' |
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| Real Size | 19 light yrs. |
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| Magnitude | - |
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| Distance | 5500 light yrs. |
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| Other IDs | Sh2-125, LBN424 |
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IC5146 is a small round reflection nebula near a border to Cepheus, with a size of 12 arc minutes.
A nickname of "The Cocoon Nebula" has came from its round shape and dimmed impression.
A dark filament of B168 is stretched westward from the cocoon nebula itself, and it seemingly looks like that the nebula is drifting in the Milky Way, very humorous view.
The nebula includes fairly complicated dark lanes in round emitting region, and is estimated about 5500 light years away.
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