Theta Cobrini

Theta Cobrini (known as the Mav'renas system by Romulans) was a star system located in the Beta Quadrant near the Avastam and had 5 planets.

In 2267, the Federation constructed an outpost on Theta Cobrini V that would be capable of scanning deep into Romulan space. Later that year, the outpost was destroyed by Klingon vessels that then attacked a Romulan force which had also been sent to destroy the base.