HIP 116454 b
外观
太阳系外行星 | 太阳系外行星列表 | |
---|---|---|
母恒星 | ||
母恒星 | HIP 116454 | |
星座 | 双鱼座 | |
赤经 | (α) | 23h 35m 49.28138s |
赤纬 | (δ) | +00° 26′ 43.8578″ |
距离 | ±17.61 180.04ly (±5.4 55.2pc) | |
光谱类型 | K0 | |
轨道参数 | ||
轨道离心率 | (e) | ±0.072 0.205 |
公转周期 | (P) | ±0.0005 9.1205d |
轨道倾角 | (i) | ±0.40° 88.43 |
物理性质 | ||
质量 | (m) | ±1.33 11.82M🜨 |
半径 | (r) | ±0.18 2.53R🜨 |
密度 | (ρ) | ±1.08 4.17g cm-3 |
温度 | (T) | ±14 690K |
HIP 116454 b是一颗环绕恒星HIP 116454的太阳系外行星,距离地球55秒差距(180光年),在天球上位于双鱼座。该行星的直径为32,000公里,质量约为地球的12倍[1][2]。该行星由美国国家航空航天局的开普勒空间望远镜和加拿大的恒星微变和振荡望远镜发现[3],并且是开普勒空间望远镜在K2阶段任务发现的第一颗细外行星。HIP 116454b于2014年12月18日宣布发现[4]。
参考资料
[编辑]- ^ Overbye, Dennis. Kepler Spacecraft Finds New 'Super-Earth' 180 Light-Years Away. The New York Times. December 19, 2014 [December 19, 2014]. (原始内容存档于2020-11-11).
- ^ Wall, Mike. NASA's Kepler Spacecraft Finds 1st Alien Planet of New Mission. Yahoo! News. December 18, 2014 [December 19, 2014]. (原始内容存档于2016-03-04).
- ^ Shore, Randy. UBC astronomers help spot new 'waterworld' planet in our (galactic) neighbourhood. The Province. December 18, 2014 [December 18, 2014]. (原始内容存档于2015年2月3日).
- ^ Chou, Felicia; Johnson, Michele. NASA's Kepler Reborn, Makes First Exoplanet Find of New Mission. NASA. December 18, 2014 [December 19, 2014]. Release 14-335. (原始内容存档于2014-12-19).
延伸阅读
[编辑]- Vanderburg, Andrew; Montet, Benjamin T.; Johnson, John Asher; Buchhave, Lars A.; Zeng, Li; Pepe, Francesco; Cameron, Andrew Collier; Latham, David W.; Molinari, Emilio; Udry, Stephane; Lovis, Christophe; Matthews, Jaymie M.; Cameron, Chris; Law, Nicholas; Bowler, Brendan P.; Angus, Ruth; Baranec, Christoph; Bieryla, Allyson; Boschin, Walter; Charbonneau, David; Cosentino, Rosario; Dumusque, Xavier; Figueira, Pedro; Guenther, David B.; Harutyunyan, Avet; Hellier, Coel; Kuschnig, Rainer; Lopez-Morales, Mercedes; Mayor, Michel; Micela, Giusi; Moffat, Anthony F. J.; Pedani, Marco; Phillips, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Riddle, Reed; Rowe, Jason F.; Rucinski, Slavek M.; Sasselov, Dimitar; Segransan, Damien; Sozzetti, Alessandro; Szentgyorgyi, Andrew; Watson, Chris; Weiss, Werner W. Characterizing K2 Planet Discoveries: A super-Earth transiting the bright K-dwarf HIP 116454. 2014-12. arXiv:1412.5674v1 .