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天鹰座V1703

天鹰座V1703
V1703 Aquilae
HD 192263
观测资料
历元 J2000
星座 天鹰座
星官
赤经 20h 13m 59.8451s
赤纬 –00° 52′ 00.757″
视星等(V) 7.79
特性
光谱分类K2V
B−V 色指数0.938 ± 0.015
变星类型天龙座BY型变星
天体测定
径向速度 (Rv)-11.3 km/s
自行 (μ) 赤经:-63.37 mas/yr
赤纬:262.26 mas/yr
视差 (π)50.27 ± 1.13 mas
距离65 ± 1 ly
(19.9 ± 0.4 pc)
绝对星等 (MV)6.30
详细资料
质量0.81 M
半径0.75 R
温度4965 K
金属量-0.2
年龄0.57×109
其他命名
V1703 Aquilae, HIP 99711, SAO 144192, LTT 8003, BD-01° 3925, HD 192263, NLTT 48902.
参考数据库
SIMBAD资料
ARICNS资料
系外行星百科资料
资料来源:
依巴谷星表CCDM (2002)、亮星星表

天鹰座V1703V1703 Aquilae),即HD 192263,是一颗位于天鹰座的恒星,视星等8等,距离地球约65光年。该恒星是光谱类型 K2V 的橙矮星,表面温度和光度都低于太阳。该恒星必须以双筒望远镜或小型望远镜才能观测。

概要

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有许多观测到该恒星伴星的报告,但可能都只是在天球上同一方向或者是观测错误。

天鹰座V1703的视线方向相当接近天球赤道[1]

1999年在该恒星旁发现一颗系外行星

行星系

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1999年9月28日,Santos 等人宣布以拉西拉天文台的瑞士望远镜发现该恒星旁有一颗行星,并且杰佛瑞·马西等人也独立发现该行星[2]

天鹰座V1703的行星系[3]
成员
(依恒星距离)
质量 半长轴
(AU)
轨道周期
()
离心率 倾角 半径
b >0.641 ± 0.61 MJ 0.1532 ± 0.88 24.3556 ± 0.0046 0.055 ± 0.039

参考资料

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  1. ^ Santos; Udry, S.; Mayor, M.; Naef, D.; Pepe, F.; Queloz, D.; Burki, G.; Cramer, N.; Nicolet, B.; et al. The CORALIE survey for southern extra-solar planets XI. The return of the giant planet orbiting HD 192263. Astronomy and Astrophysics. 2003, 406 (1): 373–381 [2013-03-30]. Bibcode:2003A&A...406..373S. arXiv:astro-ph/0305434可免费查阅. doi:10.1051/0004-6361:20030776. (原始内容 (abstract)存档于2006-01-17). 
  2. ^ discovered independently by Marcy et al.页面存档备份,存于互联网档案馆).
  3. ^ Butler; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D.; Johnson, J. A.; et al. Catalog of Nearby Exoplanets. The Astrophysical Journal. 2006, 646 (1): 505–522 [2013-03-30]. Bibcode:2006ApJ...646..505B. arXiv:astro-ph/0607493可免费查阅. doi:10.1086/504701. (原始内容存档于2009-05-02). 

外部链接

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天鹰座V1703
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