Regulus was an inhabited planet in the Alpha Leonis system of the Beta Quadrant.
In 2254, Captain Christopher Pike, in a conversation with CMO Boyce, spoke of resigning from Starfleet service and going into business on this planet. (TOS: "The Cage", "The Menagerie, Part I")
| Alpha Leonis system |
|---|
| Regulus |
| Regulus • Regulus II • Regulus III • Regulus V |
This planet's quadrant of origin is inferred based on the position of its star system as seen in the star charts appearing in the Star Trek: Discovery episode "Magic to Make the Sanest Man Go Mad" and in the Star Trek: Picard episode "Maps and Legends".
The planet Regulus was first mentioned in Gene Roddenberry's 1964 series proposal "Star Trek is...". In "A Question of Cannibalism", one of multiple suggested story ideas proffered by Roddenberry, Regulus is home to an Earth colony. Robert April, captain of the SS Yorktown, discovers that the "cow-like creatures" farmed on Regulus are actually sentient beings.