NGC 6861

Short description: Lenticular galaxy in the constellation Telescopium

NGC 6861

NGC 6861

Observation data (J2000 epoch)
Constellation| Telescopium[1]
Right ascension|  20h 07m 19.48s[2]
Declination| −48° 22′ 12.8″[2]
Redshift| 0.009437[2]
Apparent magnitude (V)| 11.0[1]
Characteristics
Type| SA0^-(s):[2]
Apparent size (V)| 3′ × 2′[1]
Other designations
IC 4949[1]

NGC 6861 is a lenticular galaxy located in the constellation Telescopium. It is the second-brightest object in the constellation. Unlike most lenticular galaxies, which tend to be mostly devoid of both gas and dust, NGC 6861 exhibits a thick obscuring ring of dust around the nucleus where star formation is occurring. The galaxy was discovered by Scottish astronomer James Dunlop, in 1826.[3] NGC 6861 is interacting with NGC 6868, and it is predicted that they will eventually merge.[4]

## References

1. ↑ 1.0 1.1 1.2 1.3 "NGC 6861". http://dso-browser.com/dso/info/NGC/6861.
2. ↑ 2.0 2.1 2.2 2.3 "NED results for object NGC 6861". http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+6861&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
3. ↑ "Hubble Views 'Third Kind' of Galaxy". http://www.nasa.gov/content/goddard/hubble-views-third-kind-of-galaxy/#.VMxBBC6gslQ.
4. ↑ Machacek, M. E.; O'Sullivan, E.; Randall, S. W.; Jones, C.; Forman, W. R. (2010). "The Mysterious Merger of NGC 6868 and NGC 6861 in the Telescopium Group". The Astrophysical Journal 711 (2): 1316–1332. doi:10.1088/0004-637X/711/2/1316. Bibcode: 2010ApJ...711.1316M. http://iopscience.iop.org/0004-637X/711/2/1316/article. Retrieved 31 January 2015.

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