HIP 116454 b
太陽系外行星 | 太陽系外行星列表 | |
---|---|---|
母恆星 | ||
母恆星 | HIP 116454 | |
星座 | 雙魚座 | |
赤经 | (α) | 23h 35m 49.28138s |
赤纬 | (δ) | +00° 26′ 43.8578″ |
距離 | 7002180040000000000♠180.04±17.61 ly (7001552000000000000♠55.2±5.4 pc) | |
光譜類型 | K0 | |
軌道參數 | ||
軌道離心率 | (e) | 6999205000000000000♠0.205±0.072 |
公轉週期 | (P) | 7000912050000000000♠9.1205±0.0005 d |
軌道傾角 | (i) | 7001884300000000000♠88.43±0.40° |
物理性质 | ||
质量 | (m) | 7001118200000000000♠11.82±1.33 M🜨 |
半径 | (r) | 7000252999999999999♠2.53±0.18 R🜨 |
密度 | (ρ) | 7000417000000000000♠4.17±1.08 g cm-3 |
温度 | (T) | 7002690000000000000♠690±14 K |
HIP 116454 b是一顆環繞恆星HIP 116454的太陽系外行星,距離地球55秒差距(180光年),在天球上位於雙魚座。該行星的直徑為32,000公里,質量約為地球的12倍[1][2]。該行星由美国国家航空航天局的克卜勒太空望遠鏡和加拿大的恒星微变和振荡望远镜(英语:MOST (satellite))發現[3],並且是克卜勒太空望遠鏡在K2階段任務發現的第一顆細外行星。HIP 116454b於2014年12月18日宣布發現[4]。
參考資料
- ^ 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(英语: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).
延伸閱讀
- 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
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外部連結
- HIP 116454(页面存档备份,存于互联网档案馆) at SIMBAD
- HIP 116454 at Extrasolar Planets Encyclopaedia