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Hvězdy podobné Slunci
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Hvězdy podobné Slunci

Hvězdy podobné Slunci jsou žlutí trpaslíci hlavní posloupnosti. Představte si naši Sluneční soustavu jako standardní model: tyto hvězdy mají podobnou hmotnost, teplotu a svítivost jako naše Slunce. V jejich jádrech probíhá termonukleární fúze vodíku na helium, což jim dodává stabilitu po miliardy let. Jsou to ideální kandidáti pro hledání obyvatelných planet, protože poskytují stálý zdroj energie a tepla, přesně jako motor v centru našeho domova. Jejich povrchová teplota se pohybuje kolem 5 000 až 6 000 stupňů Celsia, což jim dává jejich charakteristický nažloutlý jas.
  • Percentage of Hvězdy podobné Slunci within 98.5 světelné roky: 4.11 % (391 from 9520 stars)
  • Average hmotnost of Hvězdy podobné Slunci: 80-120% solar mass
  • Average radius of Hvězdy podobné Slunci: 80-120% solar radius
  • Average teplota of Hvězdy podobné Slunci: 5200-6000 K

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Latest news from Hvězdy podobné Slunci

Granulation patterns in LTT 9779 and WASP 121 revealed by JWST
iconToday
iconHvězdy | Exoplanety | Hvězdy podobné Slunci | Vesmírný dalekohled Jamese Webb
Image: Granulation patterns in LTT 9779 and WASP 121 revealed by JWST
Stars are not perfectly static spheres of light. Their surfaces are covered in granulation, a boiling pattern caused by heat rising from deep within the star and cooling as it reaches the surface. These granules appear as bright, shifting cells that create constant, tiny flickers in a star's brightness. Understanding these rapid fluctuations is essential because they can mimic or mask the faint signals of orbiting planets. By analyzing high-precision data from the JWST, researchers measured t...
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Thick-disk stars identified as hosts to ancient hot jupiter planets
icon16. 10. 2026
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 differences between morning and evening sides of planet WASP-39 b revealed
icon12. 10. 2026
iconHvězdy | Exoplanety | Hvězdy podobné Slunci | Horký Jupiter | Atmosféry plane
Image: Atmospheric differences between morning and evening sides of planet WASP-39 b revealed
Observations of the hot Jupiter WASP-39 b reveal significant differences between its morning and evening atmospheres. Climate models successfully match temperature patterns but still struggle to explain the observed asymmetry in carbon dioxide levels....
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Water vapor detected in the atmosphere of ultrahot Neptune LTT 9779 b
icon9. 10. 2026
iconHvězdy | Exoplanety | Hvězdy podobné Slunci | Atmosféry plane
Image: Water vapor detected in the atmosphere of ultrahot Neptune LTT 9779 b
New observations of the ultrahot Neptune LTT 9779 b reveal the presence of water vapor on its dayside. The planet shows no signs of thermal inversion or significant atmospheric escape, supporting the theory that it is a tidally locked world....
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Leave-one-out cross-validation provides clarity in radial velocity measurements of exoplanetary systems
icon7. 10. 2026
iconHvězdy | Exoplanety | Hvězdy podobné Slunci
Image: Leave-one-out cross-validation provides clarity in radial velocity measurements of exoplanetary systems
New statistical analysis refines planetary data. By checking the influence of individual measurements, researchers revised the mass of HD 119130 b, clarified the orbit of Gliese 4276, and confirmed the three-planet system orbiting Gliese 357....
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