墳墓二

(重定向自宝瓶座γ

宝瓶座γ,中名坟墓二[8],又名HD 212061,HR 8518,SAO 146044等,是位于宝瓶座的一颗恒星,视星等3.85,距地球约164光年。

宝瓶座γ
Diagram showing star positions and boundaries of the Aquarius constellation and its surroundings
宝瓶座γ的位置(圈记)
觀測資料
曆元 J2000
星座 宝瓶座
星官 坟墓 (危宿)
赤經 22h 21m 39.37542s[1]
赤緯 –01° 23′ 14.4031″[1]
視星等(V) 3.849[2]
特性
光谱分类A0 V[3]
U−B 色指数–0.092[2]
B−V 色指数–0.060[2]
天体测定
徑向速度 (Rv)–15[4] km/s
自行 (μ) 赤经:+129.53[1] mas/yr
赤纬:+7.77[1] mas/yr
视差 (π)19.92 ± 1.04[1] mas
距离164 ± 9 ly
(50 ± 3 pc)
詳細資料
表面重力 (log g)4.0[5]
溫度10,500[5] K
金属量 [Fe/H]+0.30[5] dex
自轉速度 (v sin i)80[6] km/s
其他命名
Sadalachbia, Sadachbia, 48 Aquarii, ADS 15864, BD-02°5741, FK5 842, HD 212061, HIP 110395, HR 8518, SAO 146044.[7]

参考资料

  1. ^ 1.0 1.1 1.2 1.3 1.4 van Leeuwen, F. Validation of the new Hipparcos reduction. Astronomy and Astrophysics. November 2007, 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357. 
  2. ^ 2.0 2.1 2.2 Cousins, A. W. J., Standardization of Broadband Photometry of Equatorial Standards, South African Astronomical Observatory Circulars, 1984, 8: 59, Bibcode:1984SAAOC...8...59C. 
  3. ^ Cowley, A.; et al, A study of the bright A stars. I. A catalogue of spectral classifications, Astronomical Journal, April 1969, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819. 
  4. ^ Wilson, Ralph Elmer, General Catalogue of Stellar Radial Velocities, Washington: Carnegie Institution of Washington, 1953, Bibcode:1953QB901.W495...... 
  5. ^ 5.0 5.1 5.2 Baschek, Bodo; Searle, Leonard, The Chemical Composition of the Lambda Bootis Stars, Astrophysical Journal, February 1969, 155: 537, Bibcode:1969ApJ...155..537B, doi:10.1086/149890. 
  6. ^ Royer, F.; Zorec, J.; Gómez, A. E., Rotational velocities of A-type stars. III. Velocity distributions, Astronomy and Astrophysics, February 2007, 463 (2): 671–682, Bibcode:2007A&A...463..671R, arXiv:astro-ph/0610785 , doi:10.1051/0004-6361:20065224. 
  7. ^ gam Aqr -- Star in double system, SIMBAD Astronomical Object Database (Centre de Données astronomiques de Strasbourg), [2012-08-20], (原始内容存档于2020-01-11). 
  8. ^ 香港太空館 - 研究資源 - 亮星中英對照表 互联网档案馆存檔,存档日期2008-10-25., Hong Kong Space Museum. Accessed on line November 23, 2010.