NGC 6139

Globular cluster located in the constellation of Serpens

NGC 6139
NGC 6139, imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Class	II^[1]
Constellation	Scorpius
Right ascension	16^h 27^m 41.6^s^[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

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).

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.