Depending on size, that's probably either a globular star cluster (a vaguely spherical grouping of tens of thousands of stars within a galaxy), or a galaxy (an elliptical, disc-shaped or irregular grouping of billions of stars - including several globular clusters).
Constellation I think
A collection of stars is a Galaxy.
Galaxy
galaxy
a constelation
Stars are classified using the Hertzberg-Russell Diagram
Solar system
Biosphere.
Grouped data.
What are some ways the stars in the photo could be grouped or classified
Stars are grouped to make a constellations because the way you look at it,it looks that way.
What is a Galaxy. I'll take astrophysics for 400.
constelltions
open cluster
open cluster
open cluster