Kepler-517

作者：Pan-STARRS

發佈日期：

Kepler-517, also known as KOI-303, is a binary star system of a Sun-like star and a red dwarf about 926.28 light-years away in the constellation Cygnus. A single neptunian planet is orbiting at a distance of 0.28 AU from the larger star (component A), where in 2020 was speculated to harbor a subterran-mass satellite, but since deemed unlikely to exist according to follow-up studies

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