... The Andromeda Galaxy 2.5 million light years away is the most distant object easily seen by the unaided eye. Other apparent denizens of the night sky, stars, clusters.. ... South of Antares, in the tail of the nebula-rich constellation Scorpius, lies emission nebula IC 4628. ... Have you ever seen the Pleiades star cluster? ... Perhaps the most famous star cluster on the sky, the bright stars of the Pleiades can be seen without binoculars from even the depths of a light-polluted city. ...