About 19 Cyg
19 Cyg is a rare variable star. It lies about 692.5 light-years from Earth, sits in the constellation Cyg, shines at apparent magnitude 5.18 and has spectral type M2IIIa.
Its spectrum reads M2IIIa — an M-type red star — and M stars are the silent majority: roughly three of every four stars in the galaxy are one.