NGC 1931 is an emission and reflection nebula in the constellation Auriga. The nebula has been referred to as a "miniature version of the Orion Nebula", as it shares some of the same characteristics. It is a mixed emission-reflection nebula, and contains a smaller version of the Trapezium in its hot young star cluster centered in the emission nebula. The entire cluster/nebula complex is only about 3 arcmin[2] in size. The distance from earth is estimated at about 7000 light years.[3]
Emission nebula | |
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reflection nebula | |
![]() NGC 1931 | |
Observation data: J2000.0 epoch | |
Right ascension | 5h 31m [1] |
Declination | +34° 15′[1] |
Distance | ~7000 ly |
Apparent magnitude (V) | 10.1[1] |
Apparent dimensions (V) | 3′ |
Constellation | Auriga |
See also: Lists of nebulae |
The nebula is Sharpless catalog Sh 2-237.
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Wikimedia Commons has media related to NGC 1931. |
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New General Catalogue 1500 to 1999 | |
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Constellation of Auriga | |||||||||||
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Stars |
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Star clusters |
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Nebulae |
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