Planet BD+05 4868 Ab Loses Mount Everest Mass Each 30 Hours

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A dying planet was discovered by MIT astronomers 140 light-years away, where material gets shed rapidly during its close orbit around its star.

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BD+05 4868 Ab, sized similar to Mercury, orbits every 30.5 hours while temperatures of 1,600 degrees Celsius are endured by its surface.

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Material equivalent to Mount Everest gets lost with each orbit, forming a 9-million-kilometer tail that becomes visible during star transits.

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Complete disintegration of the planet will occur within 1 to 2 million years as its gravity weakens and mass loss accelerates.

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Detection happened when unusual light patterns were noticed - brightness returned slowly and transit depths varied between orbits

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Only three other disintegrating planets were previously discovered, with this one showing the longest debris tail and fastest evaporation.

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The dust trail's mineral composition will be analyzed using the James Webb Space Telescope to study the planet's interior makeup.9

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Valuable data about rocky planet formation and their building blocks throughout the galaxy will be provided through this rare observation.

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