Constellations:
1 look the same all over earth
2 are patterns of stars
3 usually include planets
4 change with the seasons
5 are always in the same place

A constellation is a pattern of stars forming a pattern and they are always in the same place.

Definition of Constellation

A group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure. Modern astronomers divide the sky into eighty-eight constellations with defined boundaries.