HD 212710
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.
Nomenclature
This star doesn't have a Bayer or Flamsteed designation. The designation HD 212710 comes from the Henry Draper Catalogue. It is also known as BD+85 383, SAO 3721, HR 8546, or HIP 109693 from various star catalogues.Some sources identify this star with the Chinese star name Tiānhuángdàdì. It is an independent constellation in the system of Chinese constellations, belonging to the Purple Forbidden enclosure.