A star system in the Venturi Sector which consists of eight planets and an asteroid belt orbiting the Class K star Aldhan. Aldhan III has a Vulcan colony established on it.
- Aldhan (star)
- Aldhan I
- Aldhan II
- Aldhan III (Doorok)
- Aldhan IV
- Aldhan V
- Aldhan Asteroid Belt
- Aldhan VI
- Aldhan VII
- Aldhan VIII