翼宿十六

巨爵座β（β Crt，翼宿十六，Al Sharasif），是位于巨爵座南部的一个双星系统。它在夜空中肉眼可见，视星等为4.46。 从地球上测量的恒星视差为9.59毫角秒，因此巨爵座β与太阳的距离约为340光年。 巨爵座β是一个天测联星系统，轨道周期约为6年，距离为8.3个天文单位。该轨道预计半长轴为9.3个天文单位。 其主星A被列为一颗恒星光谱为A2 Ⅲ型的A型巨星。 不过Houk 和 Smith-Moore (1988) 把它列为A1 Ⅴ型主序星， 而Abt 和 Morrell (1995) 则把它列为一颗A2 Ⅳ型亚巨星。 该系统的光谱显示为钡增强，可能是因为其曾发生过传质过程。 伴星B是一颗白矮星，有效温度为36,885K，已经冷却了约400万年。 它具有异常低的质量，只有太阳的43%，这表明这颗伴星可能已经将质量转移给了主星。预测其将来可能转化为一个三星系统 ，或者是一个高轨道离心率的双星系统。 同时，这颗矮星是该系统X射线辐射的来源。 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.  Mermilliod, J.-C., Compilation of Eggen's UBV data, transformed to UBV (unpublished), Catalogue of Eggen's UBV data (SIMBAD), 1986, Bibcode:1986EgUBV........0M.  Holberg, J. B.; et al, Where are all the Sirius-like binary systems?, Monthly Notices of the Royal Astronomical Society, 2013, 435 (3): 2077, Bibcode:2013MNRAS.435.2077H, arXiv:1307.8047 , doi:10.1093/mnras/stt1433.  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 , doi:10.1051/0004-6361/201219219, A61.  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.  Smalley, B.; et al, The chemical composition and binarity of beta Crateris, Monthly Notices of the Royal Astronomical Society, January 1997, 284 (2): 457–464, Bibcode:1997MNRAS.284..457S, doi:10.1093/mnras/284.2.457.  McDonald, I.; et al, Fundamental Parameters and Infrared Excesses of Hipparcos Stars, Monthly Notices of the Royal Astronomical Society, 2012, 427 (1): 343–57, Bibcode:2012MNRAS.427..343M, arXiv:1208.2037 , doi:10.1111/j.1365-2966.2012.21873.x.  Royer, F.; et al, 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.  Burleigh, M. R.; et al, The low-mass white dwarf companion to β Crateris, Monthly Notices of the Royal Astronomical Society, November 2001, 327 (4): 1158–1164, Bibcode:2001MNRAS.327.1158B, arXiv:astro-ph/0106463 , doi:10.1046/j.1365-8711.2001.04818.x.  Barstow, M. A.; et al, Evidence for an external origin of heavy elements in hot DA white dwarfs, Monthly Notices of the Royal Astronomical Society, May 2014, 440 (2): 1607–1625, Bibcode:2014MNRAS.440.1607B, arXiv:1402.2164 , doi:10.1093/mnras/stu216.  bet Crt -- Spectroscopic binary, SIMBAD Astronomical Database (Centre de Données astronomiques de Strasbourg), [2017-03-02], （原始内容存档于2020-11-05）.  Eggleton, P. P.; Tokovinin, A. A., A catalogue of multiplicity among bright stellar systems, Monthly Notices of the Royal Astronomical Society, September 2008, 389 (2): 869–879, Bibcode:2008MNRAS.389..869E, arXiv:0806.2878 , doi:10.1111/j.1365-2966.2008.13596.x.  Houk, Nancy; Smith-Moore, M., Michigan catalogue of two-dimensional spectral types for the HD stars 4, Ann Arbor: Dept. of Astronomy, University of Michigan, 1978, Bibcode:1988MSS...C04....0H.  Abt, Helmut A.; Morrell, Nidia I., The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars, Astrophysical Journal Supplement, 1995, 99: 135, Bibcode:1995ApJS...99..135A, doi:10.1086/192182.  Schröder, C.; Schmitt, J. H. M. M., X-ray emission from A-type stars, Astronomy and Astrophysics, November 2007, 475 (2): 677–684, Bibcode:2007A&A...475..677S, doi:10.1051/0004-6361:20077429.  Kaler, James B., Beta Crateris, Stars (University of Illinois), 2015-05-22 [2017-03-03], （原始内容存档于2016-11-04）.