About HD 197636
HD 197636 is a rare variable star. It lies about 1,744.1 light-years from Earth, sits in the constellation Pav, shines at apparent magnitude 9.04 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.