Question

what is constellation

Answer 1

a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure.

Answer 2

The constellations are totally imaginary things that poets, farmers and astronomers have made up over the past 6,000 years (and probably even more!). The real purpose for the constellations is to help us tell which stars are which, nothing more. On a really dark night, you can see about 1000 to 1500 stars