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頓頑一

維基百科,自由的百科全書
頓頑一
觀測資料
曆元 J2000.0
星座 豺狼座
星官
赤經 15h 21m 48.36967s[1]
赤緯 −36° 15′ 40.9525″[1]
視星等(V) 3.58[2]
特性
光譜分類K5 III[3]
U−B 色指數+1.85[2]
B−V 色指數+1.53[2]
天體測定
徑向速度 (Rv)−29.4±0.7[4] km/s
自行 (μ) 赤經:−92.33[1] mas/yr
赤緯:−85.67[1] mas/yr
視差 (π)11.86 ± 0.16[1] mas
距離275 ± 4 ly
(84 ± 1 pc)
絕對星等 (MV)−1.55[5]
詳細資料
半徑52[6] R
溫度3,894±59[7] K
其他命名
φ1 Lup, CD−35° 10236, FK5 566, HD 136422, HIP 75177, HR 5705, SAO 206552.[8]
參考資料庫
SIMBAD資料

頓頑一(豺狼座φ1)是位於豺狼座的恆星,其視星等為3.57。

參考文獻

  1. ^ 1.0 1.1 1.2 1.3 1.4 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可免費查閱, doi:10.1051/0004-6361:20078357. 
  2. ^ 2.0 2.1 2.2 Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV data (SIMBAD), 1986, Bibcode:1986EgUBV........0M. 
  3. ^ Houk, Nancy, Michigan catalogue of two-dimensional spectral types for the HD stars 3, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, 1979, Bibcode:1982MSS...C03....0H. 
  4. ^ de Bruijne, J. H. J.; Eilers, A.-C., Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project, Astronomy & Astrophysics, October 2012, 546: 14, Bibcode:2012A&A...546A..61D, arXiv:1208.3048可免費查閱, doi:10.1051/0004-6361/201219219, A61. 
  5. ^ Ginestet, N.; et al, Magnitudes absolues des étoiles standards MK des types G à M à partir des parallaxes Hipparcos [The absolute magnitudes of the G to M type MK standards from the Hipparcos parallaxes], Astronomy and Astrophysics Supplement, February 2000, 142: 13−24, Bibcode:2000A&AS..142...13G, doi:10.1051/aas:2000135 (法語). 
  6. ^ Lang, Kenneth R., Astrophysical formulae, Astronomy and astrophysics library 1 3rd, Birkhäuser, 2006 [2018-02-23], ISBN 3-540-29692-1, (原始內容存檔於2023-07-28).  The radius (R*) is given by:
  7. ^ Strassmeier, K. G.; Schordan, P., A temperature calibration for MK-class III giants from high-resolution spectral line-depth ratios, Astronomische Nachrichten, 2000, 321 (5): 277−305, Bibcode:2000AN....321..277S, doi:10.1002/1521-3994(200012)321:5/6<277::AID-ASNA277>3.0.CO;2-H. 
  8. ^ * phi01 Lup. SIMBAD. 斯特拉斯堡天文資料中心. [2017-03-10].