HD 209458 b is an exoplanet that orbits the solar analog HD 209458 in the constellation Pegasus, some 157 light-years (48 parsecs) from the Solar System...
44 KB (4,495 words) - 20:19, 30 August 2024
stars: HD 189733 b, HD 209458 b, and WASP-12b. On October 6, 2005, a team of astronomers announced the discovery of transiting planet HD 189733 b. The planet...
41 KB (4,197 words) - 00:20, 18 July 2024
HD 209458 is a star with an orbiting exoplanet in the constellation Pegasus. It has an apparent visual magnitude of 7.65 and an absolute magnitude of...
17 KB (1,108 words) - 07:49, 21 August 2024
Chthonian planet (section HD 209458 b)
fluxes could have had their envelopes stripped by photoevaporation. HD 209458 b is an example of a gas giant that is in the process of having its atmosphere...
8 KB (805 words) - 09:12, 29 July 2024
(992 °C; 1,817 °F). This is between the predicted temperatures of HD 189733 b and HD 209458 b (1,180 K (910 °C; 1,660 °F)–1,392 K (1,119 °C; 2,046 °F)), before...
16 KB (1,611 words) - 12:06, 17 July 2024
about 1,540 K (2,310 °F; 1,270 °C) above the predicted temperature of HD 209458 b (1,400 K (2,100 °F; 1,100 °C)), which had inaugurated the category of...
18 KB (1,916 words) - 07:44, 25 July 2024
a process has actually been detected on the famous transiting planet HD 209458 b. In December 1999, a group led by A. C. Cameron had announced that they...
17 KB (1,690 words) - 18:56, 29 July 2024
to: 1923 Osiris, an asteroid Osiris (lunar crater) Osiris (planet) or HD 209458 b, an extrasolar planet Osiris (Ganymede crater), a crater on Ganymede...
2 KB (313 words) - 15:50, 27 May 2024
"Zarmina's World" or "Zarmina's Planet"; and HD 209458 b, occasionally referred to as "Osiris." 51 Pegasi b PSR 1257+12 Pulsar planet List of exoplanets...
14 KB (1,704 words) - 18:57, 10 July 2024
water absorption in the atmosphere of HD 209458 b. A planet about 150 light years away from earth, HD 209458 b was known previously to contain an evaporating...
2 KB (219 words) - 09:04, 11 September 2024