Groombridge 34 was a binary system consisting of the stars Groombridge 34 A and Groombridge 34 B. It was located in the Alpha Quadrant.
Stellar Cartography
Groombridge 34 was located in the constellation Andromeda. This system was approximately twelve light years from Sol.
In 2364, the location of Groombridge 34 was labeled in a star chart of a stellar neighborhood with Sol at the center. This chart was stored in the USS Enterprise-D library computer. Later that year, the chart was scanned by Outpost 63. (TNG: "The Naked Now", production art; TNG: "The Last Outpost")
Appendices
Background information
This star system was only mentioned in writing.
This star's quadrant of origin is inferred based on the position of neighboring locations – 61 Cygni, Alpha Centauri, Procyon, Sol, Tau Ceti, and Wolf 359 – 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 star chart naming stars within twenty light years of Sol was drawn by Rick Sternbach for the Star Trek Spaceflight Chronology (p. 77) in the late 1970s. This chart showed Earth commercial and exploration routes after the use of warp drive began. There were no commercial or exploration routes to Groombridge 34.
According to Star Trek: Star Charts (p. 44) and Stellar Cartography: The Starfleet Reference Library ("Federation Historical Highlights, 2161-2385"), Groombridge 34 was a trinary star system of three M-class stars. In the late 24th century,
This system has been confirmed to have two exoplanets, super-Earth planet and a sub-Jovian planet, which were discovered in 2014 and 2017, respectively.