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HR 6819

From Simple English Wikipedia, the free encyclopedia

HR 6819, also known as HD 167128 or QV Telescopii (abbreviated QV Tel), is a triple star system in the southern constellation of Telescopium, near the southern constellation boundary with Pavo.[1]

It is located at a distance of about 1,120 light years from the Sun, and is drifting farther away at a rate of +15 km/s. A May 2020 study reported it to contain a black hole, making it the closest known black hole, and the first one located in a stellar system visible to the naked eye.[2]


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  1. Hiltner, W. A.; et al. (July 1969). "MK Spectral Types for Bright Southern OB Stars". The Astrophysical Journal. 157: 313. Bibcode:1969ApJ...157..313H. doi:10.1086/150069.
  2. Rivinius, Th.; Baade, D.; Hadrava, P.; Heida, M.; Klement, R. (2020). "A naked-eye triple system with a nonaccreting black hole in the inner binary". Astronomy & Astrophysics. 637 (L3): 11. arXiv:2005.02541. Bibcode:2020A&A...637L...3R. doi:10.1051/0004-6361/202038020. S2CID 218516688.