1.) Constellations are visible patterns of stars with an imaginary shape in the night sky.
2.) There are constellations that are exclusive to the northern and southern hemisphere
3.) Constellations are named after heroes, gods, goddesses, and mythological creatures.
4.) They are useful not just for telling stories but also serves as a calendar for farmers, and helps travelers navigate their way around.
If you have any questions, ask in the comments and I'll reply.
-Sam