Gamma Eridon
Gamma Eridon was a star system in the Beta Quadrant. It was part of the Klingon Empire, near the Klingon-Romulan border. (, )

In 2256, the system's location, and its affiliation with the empire, was marked on a star chart in the ready room of the . () A year later, its location was labeled on the star chart showing the trajectory of Lieutenant Spock's shuttle. ()

The system's location was labeled on a stellar cartography chart seen on the 's main viewscreen in 2258, as well as on the Enterprises ready room viewscreen in 2259. (, ) 

In 2368, Jean-Luc Picard's blockade fleet retreated to this system to regroup and establish a new tachyon detection grid, after their initial grid had been disabled by Romulan warbirds that sought to help the House of Duras in the Klingon Civil War. However, this proved unnecessary, as the  was able to detect the cloaked Romulan forces by another method, before they reached Gamma Eridon. ()

In 2371, the system's location was labeled in the star chart Data and Picard were studying in  aboard the . (, display graphic)

By 2399, Gamma Eridon was located in neutral space. In this year, the system's location was labeled on a Federation star chart that was in Fleet Admiral Kirsten Clancy's office at Starfleet Headquarters. ()

Appendices

Background information 
"gam-uh AIR-ih-don" was the pronunciation for this location's name from the script pronunciation guide for "Redemption II". 

According to Star Trek: Star Charts (p. 62) and Stellar Cartography: The Starfleet Reference Library ("Stellar Cartography", pp. 27, 30; "Federation Historical Highlights, 2161-2385"), Gamma Eridon was a binary star system with a pair of M-class stars. According to a map of the Klingon Empire – prepared by the Scribe K'Tark for the Klingon High Council in the Year of Kahless 893 (2266) – Gamma Eridon was identified as a Klingon system.

Apocrypha 
In the game Star Trek: Armada, the Gamma Eridon system is infested by the Borg, and Chancellor Martok launches an attack to destroy all enemy forces in the system.

External links 
 
 

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Star systems