Coalsack Nebula
Dark nebula in the constellation Crux / From Wikipedia, the free encyclopedia
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The Coalsack Nebula (Southern Coalsack, or simply the Coalsack)[3] is a dark nebula, which is visible to the naked eye as a dark patch obscuring part of the Milky Way east of Acrux (Alpha Crucis) in the constellation of Crux.[2]
Quick Facts Dark nebula, Observation data: J2000.0 epoch ...
Dark nebula | |
---|---|
Observation data: J2000.0 epoch | |
Right ascension | 12h 50m |
Declination | −62° 30′ |
Distance | 180[2] pc |
Apparent magnitude (V) | – |
Apparent dimensions (V) | 7° × 5° |
Constellation | Crux |
Physical characteristics | |
Radius | 30–35 ly |
Absolute magnitude (V) | – |
Notable features | – |
Designations | Caldwell 99 |
See also: Lists of nebulae |
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