About HR 4008
HR 4008 is an epic variable star. It lies about 2,131.7 light-years from Earth, sits in the constellation UMa, shines at apparent magnitude 6.18 and has spectral type M0IIIvar.
Its spectrum reads M0IIIvar — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.