南魚座ζζ Piscis Austrini)是位於南天星座南魚座的一顆橘色的恆星。它的視星等是+6.43等,接近裸眼可以看見的最暗星等極限。依據從地球測得的周年視差7.55mas[1],它與太陽的距離大約是820光年。這顆恆星已經演化成為K型星類型為K1III[3]。它被認爲可能是變星[6]

南魚座ζ
Diagram showing star positions and boundaries of the Piscis Austrinus constellation and its surroundings
Cercle rouge 100%.svg

南魚座ζ的位置(圓圈處)
觀測資料
曆元 J2000.0
星座 南魚座
星官
赤經 22h 30m 53.77352s[1]
赤緯 −26° 04′ 25.5040″[1]
視星等(V) +6.43[2]
特性
光谱分类K1 III[3]
B−V 色指数+1.08[2]
天体测定
自行 (μ) 赤经:+40.83[1] mas/yr
赤纬:−75.04[1] mas/yr
视差 (π)7.55 ± 0.55[1] mas
距离430 ± 30 ly
(132 ± 10 pc)
绝对星等 (MV)+0.83[4]
詳細資料
亮度61[4] L
其他命名
ζ PsACPD−26° 7379、FK5 5986、HD 213296、HIP 111138、HR 8570、SAO 191196[5]
參考資料庫
SIMBADdata

參考資料编辑

  1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 van Leeuwen, F., Validation of the new Hipparcos reduction, Astronomy and Astrophysics, 2007, 474 (2): 653–664, Bibcode:2007A&A...474..653V, arXiv:0708.1752, doi:10.1051/0004-6361:20078357. 
  2. ^ 2.0 2.1 Corben, P. M.; Stoy, R. H., Photoelectric Magnitudes and Colours for Bright Southern Stars, Monthly Notes of the Astronomical Society of Southern Africa, 1968, 27: 11, Bibcode:1968MNSSA..27...11C. 
  3. ^ 3.0 3.1 Houk, Nancy, Michigan catalogue of two-dimensional spectral types for the HD stars 3, Ann Arbor, Michigan: Department of Astronomy, University of Michigan, 1979, Bibcode:1982mcts.book.....H. 
  4. ^ 4.0 4.1 Anderson, E.; Francis, Ch., XHIP: An extended hipparcos compilation, Astronomy Letters, 2012, 38 (5): 331, Bibcode:2012AstL...38..331A, arXiv:1108.4971, doi:10.1134/S1063773712050015. 
  5. ^ zet PsA. SIMBAD. 斯特拉斯堡天文資料中心. [2017-05-18]. 
  6. ^ Demartino, Robert; 等, Accurate Positions Of Suspected Variable Stars Near The South Galactic Pole, Information Bulletin on Variable Stars, April 1996, 4322: 1, Bibcode:1996IBVS.4322....1D.