Tri-Rho Nautica

Tri-Rho Nautica is an inhabited Federation planet near the borders with the Gorn Empire.

According to a Starfleet Academy simulator scenario, during a hypothetical Federation-Gorn war, a USS Constitution ship patrolled its vicinity. A freighter was seen warping away, leaving behind two Gorn Cruisers. 
 * The name must be a reference to the Tri-Rho Nautica III from 25th Anniversay, although the two planets are obviously unrelated.