The Galaxy, also call the Milky Way, is made of stars. Other, distant star systems are called galaxies (lower case g) by analogy.
A Galaxy is a large collection of stars.
A star is one, a galaxy is many.
A galaxy contains planets and a star system contains only stars.
A galaxy is a collection of billions of stars. The brighter of these may show up separately, if sufficiently magnified.
A solar system is a single star in this case the SunA galaxy is an area in the universeA universe is every thing.
Universe -> galaxy -> star -> planet
The milky way is where there is a lot of stars at each end of the galaxy And a star is a matter mostly of gas pressured together
A satellite galaxy is one that revolves around another galaxy.
Unless you have a extremely powerful telescope, a galaxy and a star look almost the same.
clouds of gases and dust
The arms of the Spiral Galaxy are mostly located in one plane.
The milky way is where there is a lot of stars at each end of the galaxy And a star is a matter mostly of gas pressured together
it is plop of a difference