HD 210277 b

**HD 210277 b ^[1]**
母恒星
太阳系外行星		太阳系外行星列表
母恒星		HD 210277
星座		宝瓶座
赤经	(α)	22^h 09^m 29.8657^s
赤纬	(δ)	-07° 32′ 55.155″
距离		69.44 ly (21.29 pc)
光谱类型		G0V
轨道参数
半长轴	(a)	1.138 ± 0.066 AU
轨道离心率	(e)	0.476 ± 0.017
公转周期	(P)	442.19 ± 0.50 d (1.2106 y)
近星点时间	(T₀)	2,450,104.3 ± 2.6 JD
半振幅	(K)	38.94 ± 0.75 m/s
物理性质
最小质量	(m sin i)	1.29 ± 0.11 M_J
发现
发现时间		1998年9月9日
发现者		杰佛瑞·马西等人
发现方法		多普勒光谱学
发现地点		美国利克－卡内基系外行星巡天
发表论文		已发表论文
数据库参考
太阳系外行星百科全书		data
SIMBAD		data

HD 210277 b是一颗环绕恒星 HD 210277 的太阳系外行星，位于宝瓶座。该行星于1998年9月由利克－卡内基系外行星巡天以当时发展相当成熟的径向速度法发现。该行星的直量至少比木星高24%，轨道半长轴稍高于日地距离，但轨道离心率相当高，近拱点距离只有半长轴的一半，远拱点距离则相当于太阳和火星的距离^[2]。

2000年时有一群科学家使用依巴谷卫星的初始天文测量资料进行分析后指出，该行星的轨道倾角是175.8°，因此真实质量是木星的18倍，应属于棕矮星^[3]。但这些量测事后被证明只是轨道倾角的上限值^[4]。如果该行星的轨道和先前声明存在的星周盘在相同平面上，在这个似乎合理的假设下轨道倾角应是40°，且行星质量应是木星2.2倍^[5]，但之后的观测并未成功确认星周盘的存在^[6]^[7]^[8]。

参考资料

^ Butler, R. P.; et al. Catalog of Nearby Exoplanets. The Astrophysical Journal. 2006, 646 (1): 505–522 [2012-08-12]. Bibcode:2006ApJ...646..505B. arXiv:astro-ph/0607493  . doi:10.1086/504701. （原始内容存档于2009-05-02）.
^ Marcy; Butler, R. Paul; Vogt, Steven S.; Fischer, Debra; Liu, Michael C.; et al. Two New Candidate Planets in Eccentric Orbits. The Astrophysical Journal. 1999, 520 (1): 239–247 [2012-08-12]. Bibcode:1999ApJ...520..239M. arXiv:astro-ph/9904275  . doi:10.1086/307451. （原始内容存档于2020-06-09）.
^ Han; Black, David C.; Gatewood, George; et al. Preliminary Astrometric Masses for Proposed Extrasolar Planetary Companions. The Astrophysical Journal Letters. 2001, 548 (1): L57–L60 [2012-08-12]. Bibcode:2001ApJ...548L..57H. doi:10.1086/318927. （原始内容存档于2009-04-29）.
^ Pourbaix, D. and Arenou, F. Screening the Hipparcos-based astrometric orbits of sub-stellar objects. Astronomy and Astrophysics. 2001, 372 (3): 935–944. Bibcode:2001A&A...372..935P. arXiv:astro-ph/0104412  . doi:10.1051/0004-6361:20010597.
^ Trilling; Brown, R. H.; Rivkin, A. S.; et al. Circumstellar Dust Disks around Stars with Known Planetary Companions. The Astrophysical Journal. 2000, 529 (1): 499–505 [2012-08-12]. Bibcode:2000ApJ...529..499T. doi:10.1086/308280. （原始内容存档于2020-02-02）.
^ Beichman, C. A.; Bryden, G.; Rieke, G. H.; Stansberry, J. A.; Trilling, D. E.; Stapelfeldt, K. R.; Werner, M. W.; Engelbracht, C. W.; Blaylock, M.; Gordon, K. D.; Chen, C. H.; Su, K. Y. L.; Hines, D. C. Planets and Infrared Excesses: Preliminary Results from a Spitzer MIPS Survey of Solar-Type Stars. The Astrophysical Journal. 2005, 622 (2): 1160–1170. Bibcode:2005ApJ...622.1160B. arXiv:astro-ph/0412265  . doi:10.1086/428115.
^ Bryden, G.; Beichman, C. A.; Carpenter, J. M.; Rieke, G. H.; Stapelfeldt, K. R.; Werner, M. W.; Tanner, A. M.; Lawler, S. M.; Wyatt, M. C.; Trilling, D. E.; Su, K. Y. L.; Blaylock, M.; Stansberry, J. A. Planets and Debris Disks: Results from a Spitzer/MIPS Search for Infrared Excess. The Astrophysical Journal. 2009, 705 (2): 1226–1236. Bibcode:2009ApJ...705.1226B. doi:10.1088/0004-637X/705/2/1226.
^ Caer McCabe & Carlotta Pham. Catalog of withdrawn or refuted resolved Disks. Catalog of Resolved Circumstellar Disks. [2010-04-03]. （原始内容存档于2009-01-05）.

外部链接

HD 210277. Exoplanets. [2012-08-12]. （原始内容存档于2009-11-25）.
The Planet Around HD 210277
Location
Simulation Exoplanets
Phase Orbital HD 210277

[Butler2006-1] Butler, R. P.; et al. Catalog of Nearby Exoplanets. The Astrophysical Journal. 2006, 646 (1): 505–522 [2012-08-12]. Bibcode:2006ApJ...646..505B. arXiv:astro-ph/0607493  . doi:10.1086/504701. （原始内容存档于2009-05-02）.

[2] Marcy; Butler, R. Paul; Vogt, Steven S.; Fischer, Debra; Liu, Michael C.; et al. Two New Candidate Planets in Eccentric Orbits. The Astrophysical Journal. 1999, 520 (1): 239–247 [2012-08-12]. Bibcode:1999ApJ...520..239M. arXiv:astro-ph/9904275  . doi:10.1086/307451. （原始内容存档于2020-06-09）.

[3] Han; Black, David C.; Gatewood, George; et al. Preliminary Astrometric Masses for Proposed Extrasolar Planetary Companions. The Astrophysical Journal Letters. 2001, 548 (1): L57–L60 [2012-08-12]. Bibcode:2001ApJ...548L..57H. doi:10.1086/318927. （原始内容存档于2009-04-29）.

[4] Pourbaix, D. and Arenou, F. Screening the Hipparcos-based astrometric orbits of sub-stellar objects. Astronomy and Astrophysics. 2001, 372 (3): 935–944. Bibcode:2001A&A...372..935P. arXiv:astro-ph/0104412  . doi:10.1051/0004-6361:20010597.

[trilling-5] Trilling; Brown, R. H.; Rivkin, A. S.; et al. Circumstellar Dust Disks around Stars with Known Planetary Companions. The Astrophysical Journal. 2000, 529 (1): 499–505 [2012-08-12]. Bibcode:2000ApJ...529..499T. doi:10.1086/308280. （原始内容存档于2020-02-02）.

[6] Beichman, C. A.; Bryden, G.; Rieke, G. H.; Stansberry, J. A.; Trilling, D. E.; Stapelfeldt, K. R.; Werner, M. W.; Engelbracht, C. W.; Blaylock, M.; Gordon, K. D.; Chen, C. H.; Su, K. Y. L.; Hines, D. C. Planets and Infrared Excesses: Preliminary Results from a Spitzer MIPS Survey of Solar-Type Stars. The Astrophysical Journal. 2005, 622 (2): 1160–1170. Bibcode:2005ApJ...622.1160B. arXiv:astro-ph/0412265  . doi:10.1086/428115.

[7] Bryden, G.; Beichman, C. A.; Carpenter, J. M.; Rieke, G. H.; Stapelfeldt, K. R.; Werner, M. W.; Tanner, A. M.; Lawler, S. M.; Wyatt, M. C.; Trilling, D. E.; Su, K. Y. L.; Blaylock, M.; Stansberry, J. A. Planets and Debris Disks: Results from a Spitzer/MIPS Search for Infrared Excess. The Astrophysical Journal. 2009, 705 (2): 1226–1236. Bibcode:2009ApJ...705.1226B. doi:10.1088/0004-637X/705/2/1226.

[8] Caer McCabe & Carlotta Pham. Catalog of withdrawn or refuted resolved Disks. Catalog of Resolved Circumstellar Disks. [2010-04-03]. （原始内容存档于2009-01-05）.

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