The term CYGNUS STAR IN refers to four stars located in the constellation of Cygnus, the Swan. The first star is DENEB, a blue-white supergiant star located at the tail of the swan. The second star is LYRA, a small constellation located near the middle of the swan's body. The third star is AQUILA, a bright star located near the head of the swan. The fourth star is PEGASUS, a large constellation located near the wings of the swan. Together, these four stars form the shape of a swan in the night sky.