NGC 2169

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NGC 2169
NGC 2169.jpg
Observation data (J2000 epoch)
Constellation Orion
Right ascension 06h 8.4m
Declination +13° 57′
Distance 3.6 kly
Apparent magnitude (V) 5.9
Apparent dimensions (V) 7′
Physical characteristics
See also: Open cluster, List of open clusters

NGC 2169, is an open cluster in the Orion constellation. It was discovered by Giovanni Batista Hodierna before 1654 and discovered by William Herschel on October 15, 1784. [1] NGC 2169 is at a distance of about 3,600 light years away from Earth. It is nicknamed "The '37' Cluster" due to its striking resemblance to the numerals "37".[2] The cluster is composed of components Collinder 38, a I3pn open cluster,[3] and Collinder 83, a III3m open cluster.

External links[edit]

References[edit]

  1. ^ O'Meara, Stephen James (2007). Deep Sky Companions: Hidden Treasures. Cambridge University Press. p. 180. ISBN 9780521837040. 
  2. ^ Constellation Guide, Orion Constellation (accessed 2014-03-03)
  3. ^ Backyard Astronomy for Amateur Astronomers, "Collinder 38" (accessed 2014-03-03)

Coordinates: Sky map 06h 8.4m 00s, +13° 57′ 00″