a group of stars is galled a constellation
I think you are referring to a cluster of stars.
The group of stars is called Constellation. I think it's cluster.
Star cluster or Stellar cluster.
It can be called a star cluster, an open cluster or an asterism.
A spherical cluster.
The group of stars is called Constellation. I think it's cluster.
The proper term for a group of stars is "asterism". They can also be known as a "cluster" and/or a "constellation".
Globular Cluster.
Globular Cluster.
I think you are describing a "globular cluster", which are associated with older stars by most astronomers.
A collective noun for a group of stars is a cluster of stars (small group) and a galaxy of stars (large group).
A group of diamond is called a cluster