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...

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...

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...

(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...

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...

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...

1600 K, it is (like HD 179949 b) supposed to be hotter than HD 209458 b (formerly predicted 1392K) and possibly even HD 149026 b (predicted 1540 K from...

inflated the planet's radius. Trans-Atlantic Exoplanet Survey 51 Pegasi b HD 209458 b Hot Jupiter TrES-2b "Keck confirms transit planet" (Press release)....

in the past. Main article: Extraterrestrial atmosphere Atmosphere of HD 209458 b The circulation of the atmosphere occurs due to thermal differences when...

to: 1923 Osiris, an asteroid Osiris (lunar crater) Osiris (planet) or HD 209458 b, an extrasolar planet Osiris (Ganymede crater), a crater on Ganymede...

layers Extrasolar planet atmospheres: including those of HD 189733 b and HD 209458 b, Tau Boötis b, HAT-P-11b, XO-1b, WASP-12b, WASP-17b, and WASP-19b. Stellar...

atmosphere effects. The actual temperature from spectroscopic analysis for HD 209458 b (Osiris) is 1,130 K, but the effective temperature is 1,359 K.[citation...

discoveries did not come until the 2010s. In 2014, a magnetic field around HD 209458 b was inferred from the way hydrogen was evaporating from the planet. In...

"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...

tiny amount every three days. The transit lightcurve resembles that of HD 209458 b, the first transiting extrasolar planet. However, the mass of the object...

optical and near-infrared wavelengths. In 2014, a magnetic field around HD 209458 b was inferred from the way hydrogen was evaporating from the planet. It...

Jonathan (2014-07-02). "The 4.5 μm full-orbit phase curve of the hot Jupiter HD 209458b". The Astrophysical Journal. 790 (1): 53. arXiv:1405.5923. Bibcode:2014ApJ...

Nicolas B. Cowan; Adam P. Showman; Curtis S. Cooper; S. Thomas Megeath (10 May 2007). "A map of the day–night contrast of the extrasolar planet HD 189733b"...

HD 209458 b, XO-1b, WASP-12b, WASP-17b, and WASP-19b. In July 2014, NASA announced finding very dry atmospheres on three exoplanets (HD 189733b, HD 209458b...

dwarfs. For example, the extrasolar planet HD 209458 b has a mass of 0.69 MJ, while the brown dwarf Gliese 229 b has a mass of 60.4 MJ. Theoretical models...

March 2017. "HD 209458 b". Extrasolar Planets Encyclopaedia. Archived from the original on 2010-01-16. Retrieved 2010-02-16. "Planet CoRoT-7 b". Extrasolar...

uplifted in the wake of the meteorite impact 9.8 billion years (4 Gya): HD 209458 b, first planet detected through its transit, forms. Messier 85, lenticular...

measurements. HD 209458 b: Astronomers using the Hubble Space Telescope announced that they had detected the atmosphere of HD 209458 b. They found the...

November 27 – A hydrogen atmosphere is discovered on the extrasolar planet HD 209458 b, nicknamed Osiris, by the Hubble Space Telescope. It is the first atmosphere...

Cheetham, A.; de Wit, W. J.; Norris, B.; Olguin, F. A.; Tuthill, P. (December 2017). "The protoplanetary system HD 100546 in H α polarized light from SPHERE/ZIMPOL:...

also been confirmed outside the Solar System. Spectroscopic analysis of HD 209458 b, an extrasolar planet in the constellation Pegasus, provides the first...

successfully partially retrieved for several cases, including HD 189733 b and HD 209458 b. The quality of the retrieved spectra is significantly more affected...

This is, like Tau Boötis b, hotter than the predicted temperature of HD 209458 b (1392K), and close to that of HD 149026 b, before they were measured...

surface science. Two extrasolar planets are known to have storms: HD 209458 b and HD 80606 b. The former's storm was discovered on June 23, 2010, and measured...

star, completing an orbit every four days. Spectroscopic analysis of HD 209458 b, an extrasolar planet in this constellation, has provided the first evidence...