About HD 163251
HD 163251 is a rare star. It lies about 1,144.4 light-years from Earth, sits in the constellation Sco, shines at apparent magnitude 7.7 and has spectral type B7II/III.
Its spectrum reads B7II/III — a blue-white B-type star, with a surface tens of thousands of degrees hot and a life measured in tens of millions of years.