A feoup of stars, that the ancients saw figues of animals, and people in.
Probably the most famous constellations are, Orion, ( with his belt), and Ursa Minor ( Little Bear) with the (North) Pole Star.
constellations are stars that make up a group to form a picture like thing. We use constellations for starsigns and horascopes such as Leo represented by a lion, cancer as a crab, picies as two fish.