Cygnus, the swan, which looks like a giant cross, soars high across the west as night falls. One of its treasures is the double star 16 Cygni, which is just visible to the unaided eye. One of it stars has a planet, which is much larger than Earth.
Cygnus, the swan, which looks like a giant cross, soars high across the west as night falls. One of its treasures is the double star 16 Cygni, which is just visible to the unaided eye. One of it stars has a planet, which is much larger than Earth.