memory alpha

Caph, also known as Beta Cassiopeiae or 11 Cassiopeiae, was a star system in the Alpha Quadrant. This was a second-magnitude Delta Scuti type star. (ENT: "Cold Front")

Components

Stellar system

This was a single star system. The primary Caph (the proper name for Beta Cassiopeiae) was a F-type giant.

History

When the Venari Ral laid Omega-47 mines around the core of Federation space in 3196, this system was within the blast radius of one of the mines. (SA: "300th Night")

Stellar cartography

The Caph system was visible from Earth in the constellation Cassiopeia. It was approximately 55 light years from Sol.

In the 2150s, this system's position was labeled on an United Earth star chart which was displayed in several crew and guest quarters aboard the Enterprise. (Star Trek: Enterprise, set decoration)

This star system was only mentioned in writing.
Information on this system was derived from the reference works Star Trek: Star Charts and Stellar Cartography: The Starfleet Reference Library and 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, Star Trek: Lower Decks, and Star Trek: Starfleet Academy. The real-world information added to the article was current as of 2026.
The star chart seen in the series Star Trek: Enterprise made its first appearance in Crewman Daniels quarters in "Cold Front". It was also seen in several other episodes of the series, from 2151 to 2154. (For more information, see Federation star charts#United Earth Alpha/Beta star chart)

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