Question

a very large group of starsis called a​

Answer 1

A group of star that form a pattern is called Asterism. It is also called constellations, Astronomers use the term constellation to refer to an area of the sky.
Mark brain list

Answer 2

The patterns of stars seen in the sky are usually called constellations, although more acurately, a group of stars that forms a pattern in the sky is called an asterism. Astronomers use the term constellation to refer to an area of the sky.

Hope It Helps u Friend
Plz Mark as Brainliest