A Battlestar Group is a Colonial Fleet unit lead by at least one battlestar. On ship crests, badges, and documents it is often abbreviated as "BSG".
Battlestar Groups are seen by Ronald D. Moore as analagous to a modern-day Carrier Battle Group, comprising at least one battlestar, plus a number of support vessels. Given the number of available battlestars at the outbreak of hostilities with the Cylon attack, it is possible that a battlestar group may have comprised a number (3-4) battlestars operating as a single unit, supported by additional Colonial vessels.
Known Battlestar Groups[edit]
BSG 62: Led by Mercury class battlestar Pegasus, under Admiral Helena Cain.
BSG 75: Led by battlestar Galactica, under Commander William Adama. This group's high unit number belies the age of Galactica, probably the oldest commissioned ship in the Colonial Fleet.