About HD 7636
HD 7636 is a rare variable star. It lies about 1,896.3 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 6.86 and has spectral type B2IIIne+....
Its spectrum reads B2IIIne+... — 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.