Kepler-857
作者:Pan-STARRS
发布日期:
Kepler-857, also known as KOI-1472, is a Sun-like star about 3,299 light-years away in the constellation Cygnus. A massive neptunian planet is discovered orbiting this star, where in 2020 it is one of a few candidate planets known that might possess a moon about twice the mass of the Earth
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