About HD 54339
HD 54339 is a rare variable star. It lies about 809.3 light-years from Earth, sits in the constellation CMa, shines at apparent magnitude 7.35 and has spectral type M2/M3II/III.
Its spectrum reads M2/M3II/III — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.