HomeAstronomyMassive 'forbidden planet' orbits a tiny star only 4 times its size

Massive ‘forbidden planet’ orbits a tiny star only 4 times its size

Astronomers have discovered an unusual planetary system consisting of a Jupiter-sized planet orbiting a tiny star that is only four times the size of the solar system gas giant. This “forbidden” configuration of a massive planet orbiting a relatively tiny star could challenge theories of how gas giant planets form. 

The extrasolar planet, or “exoplanet,” orbits a red dwarf star designated TOI 5205 that is much cooler and smaller than the sun. The small size and relatively cool temperatures of these M-dwarf stars, the most common type of stellar body in the Milky Way, make them redder than the sun. 

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