Kepler-1663

Autor(i): 参宿四and韶山8

Dátum vydania:

Kepler-1663 is a single M-type main-sequence star about 1,100 light-years away in the constellation Cygnus . A sub-Neptune with a 17.6-day orbital period was discovered via the transit method in 2020, whose planet has a radius of approximately 3.3 times that of Earth . The planet's mass has not been determined .

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