NGC 6139

NGC 6139 is a globular cluster of the Milky Way in the constellation Scorpius. It is located 3.6 kiloparsecs (10 kilolight-years) from the Galactic Center[3] (less than half the distance of the Sun from the Galactic Center).

NGC 6139
NGC 6139, imaged by Hubble
Credit: NASA/ESA
Observation data (J2000 epoch)
ClassII[1]
ConstellationScorpius
Right ascension 16h 27m 41.6s[2]
Declination–38° 50′ 18″[2]
Distance10.1 kiloparsecs (30 kilolight-years)[3]
Apparent magnitude (V)+9.68[4]
Apparent dimensions (V)1′.6 x 1′.4[4]
Physical characteristics

Visibility

The cluster appears visibly small and requires larger +12" aperture telescopes to view the core. Appearing around 1.5 arcmins having a radius of .75 arcmins, despite its rather bright magnitude.

Visibility
  • Globular clusters are denser and more spherical than open star clusters.[5]

References
  1. "Results for NGC 6139". VizieR Catalogue Database. Retrieved 2013-09-06.
  2. "NED Results for NGC 6139". NASA/IPAC Extragalactic Database. Retrieved 2013-09-06.
  3. Harris, William E. (1996). "A Catalog of Parameters for Globular Clusters in the Milky Way (2010 edition)". Astronomical Journal. 112: 1487. doi:10.1086/118116.
  4. "NGC 6139". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2013-09-06.
  5. "An aging beauty". www.spacetelescope.org. Retrieved 25 June 2018.
  • Media related to NGC 6139 at Wikimedia Commons


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