A galaxy. They vary in size, of course.
galaxy are group of billions of stars
Galaxy
When billion of stars are in a concentrated dense cloud it is called a galaxy.
Yes. A group of stars called a galaxy. One of billions in the Universe. An awesome thing it is too. Truly awesome.
Billions of stars make up a galaxy.
There are literally billions of billions of stars. The vast majority are medium stars.
A galaxy contains billions of stars. A universe contains billions of galaxies.
You can't list "all the stars" in a constellation; there are billions upon billions of them.
Because they are billions and billions and billions of miles away from us.
The universe.
every galixy has billions of stars
the trillions comes after the billions!