There are twelve planets in the star system of the Twelve Colonies. They were settled by twelve tribes who left the planet Kobol in another star system following a disaster whose exact nature is unclear.
- Main article: Caprica (planet)
The planet on which most of the action occurs. Caprica is the most prosperous of the Twelve Colonies.
The seat of the Intercolonial Court.
- The home of Pryah Magnus, a public relations consultant to Daniel Graystone.
- Birthplace of Clarice Willow.
After-hours trading occurs on this planet.
- Main article: Tauron (Planet)
The planet which is the homeworld of the Adama family and others living on Caprica. Taurons apparently have a reputation for being criminals, similar to the manner in which Italians are stereotyped as being members of the mafia. Joseph Adama was introduced as Joseph Adams which was a "Capricanized" version of his Tauron name. He later began to go by Adama and let it be known he was Tauron.
There are no flowers on Tauron.