NGC 2169

Open cluster in the constellation Orion
NGC 2169
Observation data (J2000 epoch)
Right ascension06h 8.4m
Declination+13° 57′
Distance3.6 kly
Apparent magnitude (V)5.9
Apparent dimensions (V)7′
Physical characteristics
Other designations37 Cluster, Cr 38/83
Associations
ConstellationOrion
See also: Open cluster, List of open clusters
Map showing the location of NGC 2169

NGC 2169 is an open cluster in the Orion constellation. It was possibly 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.

NGC 2169 from Scottsdale AZ

References

  1. ^ O'Meara, Stephen James (2007). Deep Sky Companions: Hidden Treasures. Cambridge University Press. p. 180. ISBN 9780521837040.
  2. ^ "Orion Constellation". Constellation Guide. Retrieved 2014-03-03.
  3. ^ "Collinder 38". Backyard Astronomy for Amateur Astronomers. Archived from the original on 2016-04-14. Retrieved 2014-03-03.

External links

  • Media related to NGC 2169 at Wikimedia Commons
  • SEDS entry
  • NASA Astronomy Picture of the Day: The 37 Cluster (18 November 2005)
  • NGC 2169 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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  • GRB 991216
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