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Earth and Exoplanet Kepler-452b, Comparison
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Titre: Earth and Exoplanet Kepler-452b, Comparison
Légende: Voir la traduction automatique
Scientists using data from NASA's Kepler mission have confirmed the first near-Earth-size planet orbiting in the habitable zone of a sun-like star. The habitable zone is the region around a star where temperatures are just right for water to exist in its liquid form. The artist's concept compares Earth (left) to the new planet, called Kepler-452b, which is about 60 percent larger. The illustration represents one possible appearance for Kepler-452b; scientists do not know whether the planet has oceans and continents like Earth. Both planets orbit a G2-type star of about the same temperature; however, the star hosting Kepler-452b is 6 billion years old, 1.5 billion years older than our sun. As stars age, they become larger, hotter and brighter, as represented in the illustration. Kepler-452b's star appears a bit larger and brighter.
Scientists using data from NASA's Kepler mission have confirmed the first near-Earth-size planet orbiting in the habitable zone of a sun-like star. The habitable zone is the region around a star where temperatures are just right for water to exist in its liquid form. The artist's concept compares Earth (left) to the new planet, called Kepler-452b, which is about 60 percent larger. The illustration represents one possible appearance for Kepler-452b; scientists do not know whether the planet has oceans and continents like Earth. Both planets orbit a G2-type star of about the same temperature; however, the star hosting Kepler-452b is 6 billion years old, 1.5 billion years older than our sun. As stars age, they become larger, hotter and brighter, as represented in the illustration. Kepler-452b's star appears a bit larger and brighter.
Crédit: Album / Science Source / NASA/Ames/JPL-Caltech
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Taille de l'image: 5100 × 2868 px | 41.8 MB
Taille d'impression: 43.2 × 24.3 cm | 2007.9 × 1129.1 in (300 dpi)
Mots clés: 21E SIECLE • ANNEES 2010 • ASTRONOMIE • ASTRONOMIE: PLANETES • COSMOS • DIAGRAMME • GRAPHIQUE • ILLUSTRATION • PLANETE • PLANÈTES • SCIENCE: ASTRONOMIE • TERRA • XXIE SIECLE
