Star in the constellation Ara
Nu2 Arae ,Latinized from ν2 Arae, is theBayer designation for astar in the southernconstellation ofAra . It is approximately 570light-years (170parsecs ) from theEarth and is faintly visible to the naked eye with anapparent visual magnitude of 6.10.[ 2] stellar classification of B9.5 III-IV[ 3] B-type star with aspectrum that displays features part way between thesubgiant andgiant star stages.
The star is sometimes referred asUpsilon2 Arae (υ2 Arae).[ 7]
^a b c d e Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018)."Gaia Data Release 2: Summary of the contents and survey properties" .Astronomy & Astrophysics 616 . A1.arXiv :1804.09365 Bibcode :2018A&A...616A...1G doi :10.1051/0004-6361/201833051 Gaia DR2 record for this source atVizieR .^a b c Corben, P. M.; Stoy, R. H. (1968), "Photoelectric Magnitudes and Colours for Bright Southern Stars",Monthly Notes of the Astronomical Society of Southern Africa ,27 : 11,Bibcode :1968MNSSA..27...11C . ^a b Houk, Nancy; Cowley, A. P. (1978),Michigan catalogue of two-dimensional spectral types for the HD stars , vol. 1, Ann Arbor: Dept. of Astronomy, University of Michigan,Bibcode :1975mcts.book.....H . ^ Gontcharov, G. A. (November 2006), "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system",Astronomy Letters ,32 (11):759– 771,arXiv :1606.08053 Bibcode :2006AstL...32..759G ,doi :10.1134/S1063773706110065 ,S2CID 119231169 . ^a b Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation",Astronomy Letters ,38 (5): 331,arXiv :1108.4971 Bibcode :2012AstL...38..331A ,doi :10.1134/S1063773712050015 ,S2CID 119257644 . ^ "HR 6632 -- Star" ,SIMBAD Astronomical Database ,Centre de Données astronomiques de Strasbourg , retrieved2012-07-14 ^ Note forHR 6632
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