Astronomy and Space
HD 212710 is a star in Cepheus with an apparent magnitude of 5.258 and a spectral type of B9.5 Vn, indicating that it is a B-type main sequence star, giving it a blue hue. It is about 254 light-years away from the Solar System. It has about 2.61 times the mass of the Sun, 2.387 times the radius of the Sun and is 53.79 times as luminous.
Boeing X-37.
Fregat.
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