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Horký Jupiter
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Horký Jupiter

Horký Jupiter je obří plynná planeta podobná našemu Jupiteru, ale s jedním zásadním rozdílem: obíhá extrémně blízko své hvězdy. Zatímco náš Jupiter potřebuje k oběhu Slunce 12 let, tito exoti dokončí svůj „rok“ za pár dní. Kvůli žáru hvězdy se jejich atmosféra nafukuje jako horkovzdušný balon, což z nich činí řídké a „nadýchané“ světy. V naší sluneční soustavě nic podobného nenajdeme; u nás jsou v blízkosti Slunce jen malé kamenné planety.
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Latest news from Horký Jupiter

TOI-5322 b orbits an ancient star in the milky way thick disk
iconToday
iconHvězdy | Exoplanety | Horký Jupiter | TESS
Image: TOI-5322 b orbits an ancient star in the milky way thick disk
The planet TOI-5322 b is a hot Jupiter, a large gas giant planet that orbits extremely close to its parent star. Recent observations identify its host star as a member of the high-alpha thick disk of the Milky Way. This region consists of older, chemically distinct stars that formed in the galaxy long ago. By identifying planets within this ancient stellar population, researchers can better understand how different galactic environments influence the formation and long-term evolution of giant pl...
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WASP-33 b and other hot Jupiters identified as prime targets for structural studies
iconYesterday
iconHvězdy | Exoplanety | Horký Jupiter | Vesmírný dalekohled Jamese Webba | ARIEL
Image: WASP-33 b and other hot Jupiters identified as prime targets for structural studies
WASP-33 b, WASP-76 b, and HAT-P-32 b are identified as the best candidates for studying how stellar gravity shapes exoplanet interiors. Measuring their physical deformation will help reveal their deep, internal density structures using JWST and Ariel data....
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Thick-disk stars identified as hosts to ancient hot jupiter planets
iconYesterday
iconHvězdy | Exoplanety | Hvězdy podobné Slunci | Horký Jupiter | Vznik plane
Image: Thick-disk stars identified as hosts to ancient hot jupiter planets
New analysis of 268 stars identifies several hot Jupiters orbiting ancient stars in the Milky Way's thick disk. These systems, over 8 billion years old, show distinct differences in mass and orbital periods compared to younger thin-disk populations....
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Atmospheric composition of hot Jupiter KELT-2A b reveals chemical history
icon15. 10. 2026
iconHvězdy | Exoplanety | Horký Jupiter | Atmosféry plane
Image: Atmospheric composition of hot Jupiter KELT-2A b reveals chemical history
New observations of hot Jupiter KELT-2A b confirm water vapor in its atmosphere. The planet shows a carbon-to-oxygen ratio similar to its host star but with overall lower metallicity, suggesting a complex migration history from far out in its star system....
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Periodic transit timing variations measured for Neptune-like planet HAT-P-18 b
icon15. 10. 2026
iconHvězdy | Exoplanety | Superzemě | Horký Jupiter | Vesmírný dalekohled Jamese Webb
Image: Periodic transit timing variations measured for Neptune-like planet HAT-P-18 b
New observations from the James Webb Space Telescope show periodic transit timing variations in the Neptune-like planet HAT-P-18 b. The data indicates an orbital timing shift of 92.9 seconds, providing fresh insights into the dynamics of this distant system....
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study iconResearch in Vesmírný dalekohled Jamese Webba

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