Question

what is constellation?​

Answer 1

A constellation is an area on the celestial sphere in which a group of visible stars forms a perceived outline or pattern, typically representing an animal, mythological person or creature, or an inanimate object. The origins of the earliest constellations likely go back to prehistory.

Answer 2

various patterns formed by different groups of stars are called constellations..

ursa major or big bear is one such constellation.