墳墓二
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。
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 | |
参考资料
- van Leeuwen, F. . Astronomy and Astrophysics. November 2007, 474 (2): 653–664. Bibcode:2007A&A...474..653V. arXiv:0708.1752 . doi:10.1051/0004-6361:20078357.
- Cousins, A. W. J., , South African Astronomical Observatory Circulars, 1984, 8: 59, Bibcode:1984SAAOC...8...59C.
- Cowley, A.; et al, , Astronomical Journal, April 1969, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
- Wilson, Ralph Elmer, , Washington: Carnegie Institution of Washington, 1953, Bibcode:1953QB901.W495......
- Baschek, Bodo; Searle, Leonard, , Astrophysical Journal, February 1969, 155: 537, Bibcode:1969ApJ...155..537B, doi:10.1086/149890.
- Royer, F.; Zorec, J.; Gómez, A. E., , Astronomy and Astrophysics, February 2007, 463 (2): 671–682, Bibcode:2007A&A...463..671R, arXiv:astro-ph/0610785 , doi:10.1051/0004-6361:20065224.
- , SIMBAD Astronomical Object Database (Centre de Données astronomiques de Strasbourg), [2012-08-20], (原始内容存档于2020-01-11).
- 香港太空館 - 研究資源 - 亮星中英對照表 的存檔,存档日期2008-10-25., Hong Kong Space Museum. Accessed on line November 23, 2010.
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