NGC 1990
| Emission nebula | |
|---|---|
| H II region | |
| reflection nebula | |
|  NGC 1990 around Alnilam | |
| Observation data: J2000 epoch | |
| Right ascension | 05h 36m 16.2s | 
| Declination | −01° 12′ 07″ | 
NGC 1990 is a reflection nebula which is a molecular cloud of Epsilon Orionis. The stellar winds from Epsilon Orionis, or Alnilam, distribute the nebula approximately up to 2,000 km/s, more than 20 million times that of the stellar winds of the Sun.
References
- "Simbad query". Retrieved October 5, 2009.
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