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Astronomers led by Teruyuki Hirano report discovery of a new exoplanet similar in size to Earth around nearby star K2-415. With only 16 % solar mass the small red dwarf is one of the smallest stars known to host exoplanets.
Astronomers found a brown dwarf in orbit of a bright B-type star HIP 33609. The host star has a radius 2.5 times bigger than the Sun and surface temperature above 10 000 °C. The newly found brown dwarf has about 7 % of the Sun's mass and about 16 % of its radius.