Exoplanet Kelt 9b, illustration

Bildnummer 12422598
Exoplanet Kelt 9b, illustration
Illustration of the hottest known exoplanet, Kelt-9b. Kelt-9 is an A-type star with a temperature almost twice that of the Sun. Astronomers have found an extrasolar planet orbiting this star at such close proximity that it completes an orbit in a mere 36 hours. This means that the planet is hotter, at around 4600 Kelvin, than the majority of stars. The relentless radiation from the star is evaporating the planet at a phenomenal rate. Ten billion grams of matter are stripped away from the planet every second, forming a comet-like tail behind it. In this picture we see the planet silhouetting its parent star, Kelt 9.
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Credit: Science Photo Library / Garlick, Mark
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