NGC 2158

NGC 2158

NGC 2158
NGC 2158 to the lower right of M35
Credit: 2MASS/NASA
Observation data (J2000 epoch)
Constellation Gemini
Right ascension 06h 07m 25s[1]
Declination +24° 05.8′[1]
Distance 11,000+ ly[2]
Apparent magnitude (V) 8.6[1]
Apparent dimensions (V) 5 arcmin[2]
Physical characteristics
Estimated age ~2 billion yrs[2]

NGC 2158 is an open cluster in the constellation of Gemini. It is located southwest of open cluster Messier 35, and is believed to be about 2 billion years old.[2] The two clusters are unrelated, as NGC 2158 is around 9,000 light years further away than M35.

Once thought to be a globular cluster, NGC 2158 is now known to be an intermediate-age, metal-poor open cluster that is a member of the old thin disk population.[2]

References

  1. ^ a b c "SIMBAD Astronomical Database". Results for NGC 2158. Retrieved 2010-08-31. 
  2. ^ a b c d e Carraro, Giovanni; Girardi, Leo; Marigo, Paola. "The intermediate-age open cluster NGC 2158". arXiv.org. Cornell University Library.  

External links

  • NGC 2158 (SEDS)
  • NGC 2158 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images