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Eta Crucis was a star system in the Beta Quadrant. (ENT: "Cold Front")

Components

Stellar system

This was a single star system. The primary Eta Crucis was a F-type dwarf.

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", "Rubincon")

Stellar cartography

The Eta Crucis system was visible from Earth in the constellation Crux. It was approximately 64.2 light years from Sol.

In 2151, this system's position was labeled on an United Earth star chart which was displayed in Daniels' quarters aboard the Enterprise. (ENT: "Cold Front")

In 3196, during the Omega-47 crisis, the location of Eta Crucis was depicted on star charts and readouts used across several locations on the USS Athena to locate, monitor, and respond to the Omega-47 mines laid by the Venari Ral. (SA: "300th Night", "Rubincon")

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.
In the Star Trek: Star Charts ("United Federation of Planets I"), the Eta Crucis system was shown to be in or near to Romulan space.

External links