koi55KOI -55 is a subdwarf star located in the constellation of Cygnus, The Swan.It is not part of the Cygnus constellation out but is within the borders of the constellation. Based onKOI-55 b KOI-55 c; Alternative planet names: Kepler-70 b, KOI-55.01, KIC 5807616 b, Gaia DR2 2076819620539690880 b: Kepler-70 c, KOI-55.02, KIC 5807616 c, Gaia