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OTS 44, Brown Dwarf, Birth of an Unusual Planetary System

Artist Concept. Shows a brown dwarf surrounded by a swirling disc of planet-building dust. NASA's Spitzer Space Telescope spotted such a disc around a surprisingly low-mass brown dwarf, or "failed star." The brown dwarf, called OTS 44, is only 15 times the size of Jupiter, making it the smallest brown dwarf known to host a planet-forming, or protoplanetary disc. Astronomers believe that this unusual system will eventually spawn planets. If so, they speculate that OTS 44's disc has enough mass to make one small gas giant and a few Earth-sized rocky planets. OTS 44 is about 2 million years old. At this relatively young age, brown dwarfs are warm and appear reddish in color. With age, they grow cooler and darker.

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Titre: OTS 44, Brown Dwarf, Birth of an Unusual Planetary System

Légende: Voir la traduction automatique
Artist Concept. Shows a brown dwarf surrounded by a swirling disc of planet-building dust. NASA's Spitzer Space Telescope spotted such a disc around a surprisingly low-mass brown dwarf, or "failed star." The brown dwarf, called OTS 44, is only 15 times the size of Jupiter, making it the smallest brown dwarf known to host a planet-forming, or protoplanetary disc. Astronomers believe that this unusual system will eventually spawn planets. If so, they speculate that OTS 44's disc has enough mass to make one small gas giant and a few Earth-sized rocky planets. OTS 44 is about 2 million years old. At this relatively young age, brown dwarfs are warm and appear reddish in color. With age, they grow cooler and darker.

Crédit: Album / NASA/JPL-Caltech / Science Source

Autorisations: ? Autorisation de modèle: Non - ? Autorisation de propriété: Non
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Taille de l'image: 3660 × 2928 px | 30.7 MB

Taille d'impression: 31.0 × 24.8 cm | 1440.9 × 1152.8 in (300 dpi)

Mots clés: ARTISTE • ARTISTEL • ARTSTE • ASTRONOMIE • BRUNE • CIEL • COSMOS • DISQUE • ILLUSTRATION • MATERNITÉ • MONSTRE NAIN • NAIN • OBSERVATOIRE • PLANETARIUM • SCIENCE: ASTRONOMIE