Wikipedia
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 the Hubble Space Telescope | |
| Observation data (J2000 epoch) | |
| Class | II[1] |
| Constellation | Scorpius |
| Right ascension | 16h 27m 41.6s[2] |
| Declination | –38° 50′ 18″[2] |
| Distance | 10.1 kiloparsecs (30 kilolight-years)[3] |
| Apparent magnitude (V) | +9.68[4] |
| Apparent dimensions (V) | 1′.6 x 1′.4[4] |
| Physical characteristics | |
| See also: Globular cluster, List of globular clusters | |
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
- ^ "Results for NGC 6139". VizieR Catalogue Database. Retrieved 2013-09-06.
- ^ a b "NED Results for NGC 6139". NASA/IPAC Extragalactic Database. Retrieved 2013-09-06.
- ^ a b 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.
- ^ a b "NGC 6139". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2013-09-06.
- ^ "An aging beauty". www.spacetelescope.org. Retrieved 25 June 2018.
External links
- Media related to NGC 6139 at Wikimedia Commons