Light-years

Typically, a space station serviced a locale at least several light-years radially.

Source: tatoeba (1468115)

The nearest star is about four and half light-years away from the earth.

Source: tatoeba (3615910)

The size of a galaxy may be as little as a thousand light-years across or as much as a million light-years across.

Source: tatoeba (3957782)

The spiral galaxy closest to our Milky Way galaxy is Andromeda. Andromeda is over 2 million light-years away. Its central bulge and spiral arms are tilted toward us at a 15 degree angle.

Source: tatoeba (3957799)