Hottest Exoplanet ever discovered

Astronomers discovered the hottest gas giant exoplanet ever, with atmosphere of vaporized titanium.

Exoplanet Kelt-9b is three times the size of Jupiter and only half as dense, is the hottest planet ever found and orbits its star, Kelt, every 36 hours.

Its temperatures can reach a peak of 4,327°C (7,820°F), making iron and titanium glow.

Above, an artist’s impression of planet Kelt-9b orbiting its host star, Kelt.  Credit: NASA/JPL-Caltech

Astronomers published their findings about the exoplanet that is 30 times closer to its star than the Earth is to the sun, in the journal Nature.

Exoplanet Kelt-9b

Kelt-9b is a gas giant 2.8 times more massive than Jupiter, but only half as dense.   Credit: NASA/JPL-Caltech

Exoplanet Kelt-9b

Credit: NASA/JPL-Caltech

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