About HD 142143
HD 142143 is a rare variable star. It lies about 956.5 light-years from Earth, sits in the constellation Her, shines at apparent magnitude 7.69 and has spectral type M6.5IIIas.
Its spectrum reads M6.5IIIas — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.