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This article is in the Realm Press separate continuity, which is related to the Original Series. Be sure that your contributions to this article reflect the characters and events specific to this continuity only.
See also: Cycle of Time

A cycle is a unit of distance in space, presumably less than a light yahren.

Colonel Tigh reports that the derelict fleet they've encountered is ten cycles from Galactica upon Commander Adama's arrival to core command (Prison of Souls, Part 1).