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Gliese 433
Gliese 433 is a dim red dwarf star in the constellation of Hydra, roughly 29.5 light years away from the Sun. Astronomers have announced the discovery of a very low-mass extrasolar planet in close orbit. ==Planetary system== Gliese 433 b is an extrasolar planet which orbits the star. This planet is a super-Earth with at least six times the mass of Earth and takes approximately seven days to orbit the star at a semimajor axis of approximately 0.056 AU. This planet was announced in a press release in October 2009, but no discovery paper has yet been made available. A study described in a 2014 paper by Tuomi et al. confirms both detections.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Gliese 433」の詳細全文を読む
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