The Caldos system, also known as Beta Octantis, was an inhabited planetary system in the Beta Quadrant. This system was visible from Earth in the constellation Octans. (Star Trek: Section 31). It was approximately two hundred light years from Earth. (TNG: "Sub Rosa")
Established sometime before 2242, the Federation colony on the planet Caldos was one of the first major terraforming projects. (TNG: "Sub Rosa")
In 2324, the location of Caldos was labeled in a chart used during a Section 31 Alpha Squad briefing. (Star Trek: Section 31)
Information on this system was derived from the episodes and films, from the reference works Star Trek: Star Charts and Stellar Cartography: The Starfleet Reference Library, and from real world sources. The reference works were used extensively in the creation of star charts seen in Star Trek: Discovery, Star Trek: Picard, Star Trek: Strange New Worlds, Star Trek: Prodigy, and Star Trek: Lower Decks. The real-world information added to the article was current as of 2025.
The primary of the Caldos system was classified as an A-class star by the Star Trek: Star Charts ("United Federation of Planets I"; "United Federation of Planets II") and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"). Caldos was listed as a Federation member in 2378.
The real-world distance to this system from Sol was approximately 149 light years.
External link[]
- Caldos at Memory Beta, the wiki for licensed Star Trek works