Battle station

"Now witness the firepower of this fully armed and operational battle station."

- Emperor Palpatine, to Luke Skywalker

A battle station was any space station armed for combat. During of the  Clone Wars, the  Galactic  Republic launched the construction of the  Death Star , a battle station unlike anything  the galaxy  had ever seen.

Non-canon appearances

 * Epic Yarns: A New Hope
 * Epic Yarns: Return of the Jedi
 * LEGO Star Wars: Droid Tales Episodes I-III