Loren V (also known as Loren 5) was a planet located somewhere in the space of the galaxy's Alpha or Beta Quadrants.
History and specifics[]
Loren V was the fifth planet in orbit of the Loren star system.
During the age of the Preservers, they colonized Loren V, erecting a massive city which held one of their obelisks. Eight centuries before 2269, Loren V was rendered lifeless, with time burying the city.
Prior to 2269, the United Federation of Planets had established a dilithium mining colony on Loren V with the miners discovering the Preserver settlement. When they informed the Federation of this, Kor intercepted the transmission and invaded Loren V, claiming a Preserver neural interface.
The mining colony managed to send out a distress signal which was received by the USS Enterprise. When the Enterprise arrived, Sanderson informed them of the Preserver presence on the planet. Using Arex Na Eth's telepathy, the Enterprise crew discovered the Klingon base on the planet and managed to steal the neural interface, warping away once it was onboard. (TOS - Year Four comics: "The Enterprise Experiment, Part 3", "The Enterprise Experiment, Part 4")