Our local group of galaxies is bound by gravity, although the large and small magellanic clouds nearby are moving fast enough they are probably just passing through.
Our entire local group is also moving towards another big group of galaxies known as "the Great Attractor," which itself is bound by gravity.
There are numerous clusters of galaxies bound by gravity throughout the hundred billion galaxies in our universe.
it is a constallation u can see them in the sky sometimes
Galaxies . . . it's the only sort.
A group of stars, dust and gases held together by gravity IS CALLED GALAXY
New stars together are called a star cluster.They usually travel in space together, for there gravity keeps them in a group.
gravity
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.
Gravity keeps the planets in orbit around the sun and the stars and the stars in orbit around the center of the galaxy. Gravity also holds the stars together against their own internal pressure.
Probably "moving group". If they're still gravitationally bound, then "open cluster" is a better term.
A galaxy is a vast number of stars together with the interstellar medium and dark matter bound together by gravity.
The stars are said to be a "gravitational binary pair"
A galaxy
Binary stars
A group of stars, dust and gases held together by gravity IS CALLED GALAXY
New stars together are called a star cluster.They usually travel in space together, for there gravity keeps them in a group.
Gravity
gravity
No, a star cluster would be a group of stars; our solar system has only one star in it - the sun, with planets in orbit around it. A star cluster, by contrast, is a much larger structure - a group of from hundreds up to hundreds of thousands of stars (globular clusters can have millions of stars) bound together by gravity. It might be better to say there are star clusters inside our galaxy, the Milky Way.
Gravity. All the stars orbit around a super massive black hole in the center of the galaxy. The black hole and all the other stars in the galaxy are gravitationally bound, but not necessarily locked, and travel through the universe together.
The answer is simple: gravity.