a physical grouping of stars in called a cluster. however if u mean a cluster you can see with your eyes you probably mean a constellation
hope this helps :)
cluster
Open Cluster
A pattern of stars is a grouping of stars perceived as a figure or design: Orion, The big Dipper, are two examples.
An asterism, which is a grouping of stars that form a recognizable shape.
the grouping for a specific organism is the species
A solar system is a star with planets orbiting it. A constellation is our view of several stars in patterns. Most constellations are just different stars that are very far apart, but from our point of view they seem close.
A loose grouping of a few thousand stars is called a cluster. The stars in a cluster have similar characteristics, which means that they have a common origin.
I think you are referring to a cluster of stars.
Galaxies.
Galaxies.
A grouping of stars, that isn't a constellation, is called an asterism.
Grouping of stars in constellations is completely arbitrary as it depends solely on our point of view (stars in particular constellation aren't really near together and can be separated by great distances - in fact stars belonging to two different constellations may be closer together than stars in just one of them) and was influenced by our mythological views. Grouping of planets in a solar system at least has an actual basis: planets are gravitationally bound to a star and are located nearby.
An apparent grouping of stars (as the Big Dipper) is an asterism, formerly called a constellation. (A constellation is now a bordered area of sky, equivalent to a state on a political map). Stars which are actaully associated, may be a cluster, a nebula or a galaxy.
Grouping stars by brightness
An open cluster.
Open Cluster
A pattern of stars is a grouping of stars perceived as a figure or design: Orion, The big Dipper, are two examples.
A constellation is a grouping of stars that people say looks like a person or a an object.