The star groups are galaxies, or possibly globular star clusters.
It is a galaxy.
it is a galaxy.
They form galaxies, galactic clusters, and galactic superclusters.
its a GALAXY!! is a gravitational pull the same thing as a gravitational attraction? well, if it isn't the same than this may b wring just to let you know!!
A huge collectio of stars, dust, and gas held together by mutual gravitational attraction
They are held there by their mutual gravitational attraction.
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A system of billions of stars held together by gravity is called a galaxy. The one we live in is called the Milky Way galaxy.
Billions of stars make up galaxies. Galaxies are vast systems of stars, planets, gas, and dust that are held together by gravity. Our Milky Way galaxy, for example, consists of billions of stars including our Sun.
a cluster
A binary star is a system of two stars gravitationally bound together that are constantly orbiting each other.
There are billions of galaxies. Most stars are born in one galaxy but others are pulled in by the huge gravitational forces of the black hole in the centre.