南十字座ζ

南十字座ζ是在南十字座南部的一顆聯星。它可以用肉眼直接看見,視星等為4.06m,距離太陽大約360光年。它是天蠍-半人馬星協的子集團,下天蠍-半人馬座星協的成員[10]

南十字座ζ
觀測資料
曆元 J2000
星座 南十字座
星官
赤經 12h 18m 26.24772s[1]
赤緯 –64° 00 11.0528[1]
視星等(V) 4.04[2]
特性
光谱分类B2.5V[3]
U−B 色指数–0.68[2]
B−V 色指数–0.17[2]
天体测定
徑向速度 (Rv)+15.8[4] km/s
自行 (μ) 赤经:−33.80[1] mas/yr
赤纬:−10.15[1] mas/yr
视差 (π)9.12 ± 0.45[1] mas
距离360 ± 20 ly
(110 ± 5 pc)
绝对星等 (MV)−1.13[5]
詳細資料
質量6.4±0.1[6] M
亮度737[5] L
溫度3,832[7] K
自轉速度 (v sin i)115[8] km/s
年齡20.0±4.3[6] Myr
其他命名
ζ Cru、​CPD−63° 2235、​HD 106983、​HIP 60009、​HR 4679、​SAO 251841[9]
參考資料庫
SIMBAD资料

這是一顆雙譜的光譜聯星[11]。光譜與B型主序星匹配,恆星分類屬於B2.5V。它有一顆微弱的視覺伴星,視星等12.49[12]

參考資料

  1. Van Leeuwen, F. . Astronomy and Astrophysics. 2007, 474 (2): 653. Bibcode:2007A&A...474..653V. arXiv:0708.1752可免费查阅. doi:10.1051/0004-6361:20078357. Vizier catalog entry页面存档备份,存于
  2. Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewskj, W. Z. . Communications of the Lunar and Planetary Laboratory. 1966, 4 (99): 99. Bibcode:1966CoLPL...4...99J.
  3. Hiltner, W. A.; Garrison, R. F.; Schild, R. E. . Astrophysical Journal. July 1969, 157: 313–326. Bibcode:1969ApJ...157..313H. doi:10.1086/150069.
  4. Evans, D. S. . Batten, Alan Henry; Heard, John Frederick (编). . University of Toronto: International Astronomical Union. June 20–24, 1966. Bibcode:1967IAUS...30...57E.
  5. Anderson, E.; Francis, Ch., , Astronomy Letters, 2012, 38 (5): 331, Bibcode:2012AstL...38..331A, arXiv:1108.4971可免费查阅, doi:10.1134/S1063773712050015.
  6. Tetzlaff, N.; et al, , Monthly Notices of the Royal Astronomical Society, January 2011, 410 (1): 190–200, Bibcode:2011MNRAS.410..190T, arXiv:1007.4883可免费查阅, doi:10.1111/j.1365-2966.2010.17434.x.
  7. Gerbaldi, M.; Faraggiana, R.; Balin, N. . Astronomy and Astrophysics. November 2001, 379: 162–184. Bibcode:2001A&A...379..162G. doi:10.1051/0004-6361:20011298.
  8. Bernacca, P. L.; Perinotto, M. . Contributi Osservatorio Astronomico di Padova in Asiago. 1970, 239 (1): 1. Bibcode:1970CoAsi.239....1B.
  9. . SIMBAD. 斯特拉斯堡天文資料中心.
  10. Chen, Christine H.; et al, , The Astrophysical Journal, September 2012, 756 (2): 24, Bibcode:2012ApJ...756..133C, arXiv:1207.3415可免费查阅, doi:10.1088/0004-637X/756/2/133, 133.
  11. Chini, R.; et al, , Monthly Notices of the Royal Astronomical Society, 2012, 424 (3): 1925, Bibcode:2012MNRAS.424.1925C, arXiv:1205.5238可免费查阅, doi:10.1111/j.1365-2966.2012.21317.x.
  12. Gahm, G. F.; Ahlin, P.; Lindroos, K. P. . Astronomy and Astrophysics Supplement Series. January 1983, 51: 143–159. Bibcode:1983A&AS...51..143G.
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