HR 8799 is a roughly 30 million-year-old main-sequence star located 133.3 light-years (40.9 parsecs) away from Earth in the constellation of Pegasus....
43 KB (3,971 words) - 18:40, 10 March 2024
HR 8799 c is an extrasolar planet located approximately 129 light-years away in the constellation of Pegasus, orbiting the 6th magnitude Lambda Boötis...
10 KB (785 words) - 16:38, 21 December 2023
HR 8799 b is an extrasolar planet located approximately 129 light-years away in the constellation of Pegasus, orbiting the 6th magnitude Lambda Boötis...
11 KB (1,037 words) - 03:04, 20 December 2023
HR 8799 e is a large exoplanet, orbiting the star HR 8799, which lies 129 light-years from Earth. This gas giant is between 5 and 10 times the mass of...
10 KB (931 words) - 03:11, 22 November 2023
HR 8799 d is an extrasolar planet located approximately 129 light-years away in the constellation of Pegasus, orbiting the 6th magnitude Lambda Boötis...
8 KB (531 words) - 03:36, 29 November 2023
Janson, M.; Bergfors, C.; Goto, M.; Brandner, W.; Lafreniere, D. (2010-02-10). "Spatially resolved spectroscopy of the exoplanet HR 8799 c". The Astrophysical...
63 KB (5,342 words) - 11:30, 10 May 2024
This list includes the four members of the multi-planet system that orbit HR 8799. It is unlikely or at least unclear if objects on a wide orbit (≥100 AU)...
48 KB (3,378 words) - 06:53, 26 April 2024
Ji; et al. (20 November 2018). "Detecting Water in the Atmosphere of HR 8799 c with L-band High-dispersion Spectroscopy Aided by Adaptive Optics". The...
238 KB (22,287 words) - 17:09, 16 June 2024
first directly imaged planets) around HR 8799 and a 2010 paper discovering a fourth imaged planet in the system: HR 8799 e. In 1982, Zuckerman co-edited a...
7 KB (448 words) - 22:01, 14 May 2024
D.; Bruni, I.; Gualandi, R.; Bonanno, A.; Vauclair, G.; Reed, M.; Chen, C.-W.; Leibowitz, E.; Paparo, M.; Baran, A.; Charpinet, S.; Dolez, N.; Kawaler...
41 KB (2,092 words) - 05:12, 19 April 2024