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Two-Planet System around Backward-Spinning Star 5nvklj





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Two-Planet System around Backward-Spinning Star

Dragon
Dragon
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Two-Planet System around Backward-Spinning Star Empty Two-Planet System around Backward-Spinning Star

Post by Dragon Thu Feb 18, 2021 4:05 am

K2-290A, the primary star in the triple stellar system K2-290, is tilted by 124 degrees compared with the orbits of both of its known planets, and has a wide-orbiting companion that is capable of having tilted the protoplanetary disk.

K2-290, also known as BD-19 4173 and TIC 70803960, is a triple system located 897 light-years away in the constellation of Libra.

In 2019, two transiting planets were discovered around the primary star in the K2-290 system.

The inner planet, K2-290Ab, has an orbital period of 9.2 days and a radius of 3 Earth radii, making it a hot sub-Neptune.

The outer planet, K2-290Ac, is a warm Jupiter with orbital period 48.4 days and a radius of 11.3 Earth radii.


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Two-Planet System around Backward-Spinning Star 334pu7m
Dragon
Dragon
Senior Administrator
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Posts : 5714
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Join date : 2018-01-18

Two-Planet System around Backward-Spinning Star Empty Re: Two-Planet System around Backward-Spinning Star

Post by Dragon Thu Feb 18, 2021 4:09 am

Two-Planet System around Backward-Spinning Star Image_9363-K2-290
Image credit: Christoffer Groenne.

An artist’s impression of the K2-290 system.


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Two-Planet System around Backward-Spinning Star 334pu7m

    Current date/time is Thu Apr 15, 2021 3:45 am