NGC 1931
Encyclopedia
NGC 1931, found in the constellation Auriga
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 in size. The distance from earth is estimated at about 7000 light years
..
The nebula is Sharpless catalog
Sh 2-237.
Auriga (constellation)
Auriga is a constellation in the northern sky. Its name is Latin for 'charioteer' and its stars form a shape that has been associated with the pointed helmet of a charioteer. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and remains among the 88 modern...
has been referred to as a "miniature version of the Orion Nebula
Orion Nebula
The Orion Nebula is a diffuse nebula situated south of Orion's Belt. It is one of the brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light...
", as it shares some of the same characteristics. It is a mixed emission-reflection nebula
Nebula
A nebula is an interstellar cloud of dust, hydrogen gas, helium gas and other ionized gases...
, and contains a smaller version of the Trapezium
Trapezium (astronomy)
The Trapezium, or Orion Trapezium Cluster is a tight open cluster of stars in the heart of the Orion Nebula, in the constellation of Orion. It was discovered by Galileo Galilei. On February 4, 1617 he sketched three of the stars , but missed the surrounding nebulosity...
in its hot young star cluster
Star cluster
Star clusters or star clouds are groups of stars. Two types of star clusters can be distinguished: globular clusters are tight groups of hundreds of thousands of very old stars which are gravitationally bound, while open clusters, more loosely clustered groups of stars, generally contain less than...
centered in the emission nebula
Emission nebula
An emission nebula is a cloud of ionized gas emitting light of various colors. The most common source of ionization is high-energy photons emitted from a nearby hot star...
. The entire cluster/nebula complex is only about 3 arcmin in size. The distance from earth is estimated at about 7000 light years
Light Years
Light Years is the seventh studio album by Australian recording artist Kylie Minogue. It was released on 25 September 2000 by Parlophone and Mushroom Records. The album's style was indicative of her return to "mainstream pop dance tunes"....
..
The nebula is Sharpless catalog
Sharpless catalog
The Sharpless catalog is a list of 312 HII regions , intended to be comprehensive north of declination -27°. The first edition was publishing 1953 with 142 objects and second and final version was published by US astronomer Stewart Sharpless in 1959 with 312 objects.In 1953 Stewart Sharpless joined...
Sh 2-237.