Light-years

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

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

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

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.

The Andromeda galaxy is over 2 million light-years away from us.

A black hole in the center of the M87 galaxy in the constellation Virgo, which is 50 million light-years away, has been calculated to have a mass equal to that of 3 billion Suns!

The Milky Way is over 100,000 light-years wide.

Our solar system is 26,000 light-years from the center of the Galaxy.

The parsec is equal to about 3.3 light-years.

The planet Sakura is 4.7 light-years away.