奚仲二

奚仲二(天鹅座ι2)是位于天鹅座的恒星，其视星等为3.77

奚仲二

观测资料 历元 J2000
星座	天鹅座
星官
赤经	19h 29m 42.36s[1]
赤纬	+51° 43′ 47.2″[1]
视星等（V）	3.77
特性
光谱分类	A5V[2]
B−V 色指数	+0.15
天体测定
径向速度 (Rv)	−19.50[3] km/s
自行 (μ)	赤经：+20.59 mas/yr 赤纬：+128.33 mas/yr
视差 (π)	26.88 ± 0.11[1] mas
距离	121.3 ± 0.5 ly (37.2 ± 0.2 pc)
绝对星等 (MV)	+0.91[4]
详细资料
质量	1.80[5] M☉
半径	1.90 [6] R☉
表面重力 (log g)	3.91[5]
亮度	38[7] L☉
温度	7003821600000000000♠8,216±279[5] K
年龄	577[5] Myr
其他命名
10 Cygni, BD+51° 2605, GC 26947, HIP 95853, HR 7420, HD 184006, SAO 31702
参考资料库
SIMBAD	资料

参考文献

1. 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. Chesneau, O.; et al. Time, spatial, and spectral resolution of the Hα line-formation region of Deneb and Rigel with the VEGA/CHARA interferometer. Astronomy and Astrophysics. 2010, 521: A5. Bibcode:2010A&A...521A...5C. arXiv:1007.2095 . doi:10.1051/0004-6361/201014509.
3. Wilson, R. E., General Catalogue of Stellar Radial Velocities, Carnegie Institution of Washington, 1953, Bibcode:1953GCRV..C......0W, LCCN 54001336
4. 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.
5. David, Trevor J.; Hillenbrand, Lynne A., The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets, The Astrophysical Journal, 2015, 804 (2): 146, Bibcode:2015ApJ...804..146D, arXiv:1501.03154 , doi:10.1088/0004-637X/804/2/146.
6. Pasinetti Fracassini, L. E.; Pastori, L.; Covino, S.; Pozzi, A., Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition, Astronomy and Astrophysics, February 2001, 367: 521–524, Bibcode:2001A&A...367..521P, arXiv:astro-ph/0012289 , doi:10.1051/0004-6361:20000451 Vizier catalog entry （页面存档备份，存于互联网档案馆）
7. Zorec, J.; Royer, F., Rotational velocities of A-type stars. IV. Evolution of rotational velocities, Astronomy & Astrophysics, January 2012, 537: A120, Bibcode:2012A&A...537A.120Z, arXiv:1201.2052 , doi:10.1051/0004-6361/201117691.