Английская Википедия:Gliese 832 b
Шаблон:Short description Шаблон:Infobox planet Gliese 832 b (Gl 832 b or GJ 832 b) is a gas giant exoplanet about 80% the mass of Jupiter, located 16.2 light-years from the Sun in the constellation of Grus, orbiting the red dwarf star Gliese 832.[1]
Orbit
The planet takes 9.88 years to revolve around its star at an orbital distance of 3.5 AU;[2] at the time of discovery, this was the longest-period Jupiter-like planet known orbiting a red dwarf.[3] The brightness of the faint parent star at that distance corresponds to the brightness of the Sun from 80 AU (or 100 times brighter than a full Moon as seen from Earth).
Discovery
The planet was discovered at the Anglo-Australian Observatory on September 1, 2008. It would induce an astrometric perturbation on its star of at least 0.95 milliarcseconds and is thus a good candidate for being detected by astrometric observations. Despite its relatively large angular distance, direct imaging is problematic due to the star–planet contrast.[3] Gliese 832 b was confirmed and its parameters updated by subsequent studies in 2011,[4] 2014,[5] and 2022.[6] In 2023, an astrometric detection of the planet was announced, determining its inclination and revealing a true mass 80% the mass of Jupiter.[2]
References
External links
Шаблон:Sky Шаблон:Nearest systems Шаблон:Grus (constellation)
- ↑ Шаблон:Cite web
- ↑ 2,0 2,1 Ошибка цитирования Неверный тег
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; для сносокGorrini2022
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- Английская Википедия
- Exoplanets discovered in 2008
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- Giant planets
- Exoplanets detected by radial velocity
- Exoplanets detected by astrometry
- Gliese 832
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