About HD 40664
HD 40664 is a rare variable star. It lies about 2,203.8 light-years from Earth, sits in the constellation Pic, shines at apparent magnitude 8.12 and has spectral type M1/M2III.
Its spectrum reads M1/M2III — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.