About HD 218997
HD 218997 is a rare variable star. It lies about 1,524.1 light-years from Earth, sits in the constellation Cas, shines at apparent magnitude 8.76 and has spectral type M5e-M8.5e.
Its spectrum reads M5e-M8.5e — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.