We are about 26,000 light years from Galactic Central.
That means that two stars are close together, orbiting their common center of mass.
Probably the same as the center of YOUR galaxy.
Somewhere close to 28,000 light-years.
The center of a spiral galaxy is which color
The center of a spiral galaxy is which color
At the center of every galaxy is a supermassive black hole.
At the center of every galaxy is a supermassive black hole.
very rapid motion of matter close to the nucleus of the galaxy, requiring a very massive body to hold it in orbit
A spiral galaxy
Galaxies form groups called galaxy clusters, so they would orbit the center of mass of the galaxy clusters, just as our Solar System orbits the center of mass of our galaxy.Galaxies form groups called galaxy clusters, so they would orbit the center of mass of the galaxy clusters, just as our Solar System orbits the center of mass of our galaxy.Galaxies form groups called galaxy clusters, so they would orbit the center of mass of the galaxy clusters, just as our Solar System orbits the center of mass of our galaxy.Galaxies form groups called galaxy clusters, so they would orbit the center of mass of the galaxy clusters, just as our Solar System orbits the center of mass of our galaxy.
BL Lacertae is the active center of an elliptical galaxy.
Any star that gets too close to a black hole can be drawn into it. But most stars can orbit the center of the galaxy almost indefinitely, without such a thing happening.