Sirius Alpha
From Tardis Wiki, the free Doctor Who reference
Sirius Alpha was a planet in the Sirius System. It had at least four moons. (BFA/BBCR: Max Warp)
- The fourth and fifth planets in the system are called Sirius IV and Sirius V respectively. It can be assumed that this planet could also be called Sirius I, making Androzani Major and Minor, Sirius II and III.