About Cor Caroli
Cor Caroli is a rare variable star. It lies about 114.8 light-years from Earth, sits in the constellation CVn, shines at apparent magnitude 2.89 and has spectral type A0spe....
Its spectrum reads A0spe... — an A-type star: white-hot, typically about twice the Sun's mass, and the class most of the sky's famous bright stars belong to.