NGC 1990

From Wikipedia, the free encyclopedia
Jump to: navigation, search
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″
See also: Lists of nebulae

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.