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NGC 6861

From Wikipedia, the free encyclopedia
Lenticular galaxy in the constellation Telescopium
NGC 6861
NGC 6861
Observation data (J2000epoch)
ConstellationTelescopium[1]
Right ascension20h 07m 19.48s[2]
Declination−48° 22′ 12.8″[2]
Redshift0.009437[2]
Apparent magnitude (V)11.0[1]
Characteristics
TypeSA0^-(s):[2]
Apparent size (V)3 × 2[1]
Other designations
IC 4949[1]

NGC 6861 is alenticular galaxy located in the constellationTelescopium. 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 astronomerJames Dunlop, in 1826.[3] NGC 6861 is interacting withNGC 6868, and it is predicted that they will eventually merge.[4]

Gallery

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  • DSS image of NGC 6861
    DSS image of NGC 6861

References

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  1. ^abcd"NGC 6861".dso-browser.com. Archived fromthe original on 22 December 2019. Retrieved1 February 2015.
  2. ^abcd"NED results for object NGC 6861".ned.ipac.caltech.edu. Retrieved1 February 2015.
  3. ^"Hubble Views 'Third Kind' of Galaxy".nasa.gov. Retrieved31 January 2015.
  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.arXiv:1001.2567.Bibcode:2010ApJ...711.1316M.doi:10.1088/0004-637X/711/2/1316.S2CID 119114153. Retrieved31 January 2015.

External links

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  • Media related toNGC 6861 at Wikimedia Commons
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