Galaxy

A galaxy is a collection of stars and planets following a circular orbit around a central point.

Known galaxies

 * Alteran Home Galaxy
 * Ida Galaxy
 * Kaliem Galaxy
 * Milky Way Galaxy
 * Pegasus Galaxy
 * An unnamed galaxy four million light years away, where SG-1 are sent in Enemies. This galaxy was known to the Replicators, so may also have been known to the Asgard as well. It may also be the Asgard Galaxy based on this.