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...

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...

Sun-like 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....

stellar 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...

A. (2008-02-10). "The Mid-Infrared Spectrum of the Transiting Exoplanet HD 209458b". The Astrophysical Journal. 674 (1): 482–497. arXiv:astro-ph/0702593...

red dwarf star. Given that this system has the same visual magnitude as HD 209458, it promises much for the study of close transiting extrasolar planets...

(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...

measurements. With this, the planet has an orbital period similar to that of HD 209458 b, but about twice as long as those of the Optical Gravitational Lensing...

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

HD 189733 A that were alleged to be caused by interactions between the magnetic fields of the star and its "hot Jupiter" exoplanet. Procyon HD 209458...

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

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....

suggests that Mars had liquid on its surface in the past. Atmosphere of HD 209458 b The circulation of the atmosphere occurs due to thermal differences...

Squannit), measures 22 km in radius. A typical extrasolar "hot Jupiter", HD 209458 b, has a Hill sphere radius of 593,000 km, about eight times its physical...

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...

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...

Sharon Xuesong; et al. (2012). "The Discovery of HD 37605c and a Dispositive Null Detection of Transits of HD 37605b". The Astrophysical Journal. 761 (1):...

satellites The first Trojan of Neptune Evidence that the atmosphere of HD 209458 b contains water vapor List of astronomical observatories List of largest...

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

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....

extrasolar planets and brown 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...

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...

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...

models for cool brown dwarfs and extrasolar giant planets. The case of HD 209458". Astronomy and Astrophysics. 402 (2): 701–712. arXiv:astro-ph/0302293...

the atmosphere of an exoplanet, in 2001. Sodium in the atmosphere filters the starlight of HD 209458 as the giant planet passes in front of the star....

deeper 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...

"Zarmina," or even more rarely "Zarmina's World" or "Zarmina's Planet"; and HD 209458 b, occasionally referred to as "Osiris." 51 Pegasi b PSR 1257+12 Pulsar...

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...

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...

(artist concept) From top left to lower right: WASP-12b, WASP-6b, WASP-31b, WASP-39b, HD 189733 b, HAT-P-12b, WASP-17b, WASP-19b, HAT-P-1b and HD 209458 b...