The Tolic Nebula is a nebula located near Federation space.
Planet in the Tolic Nebula
The nebula was first discovered by the unmanned Derwent Probe on Stardate 7715.
On Stardate 9711, the USS Valkyrie picked up a distress call coming from the vicinity of the nebula. While investigating this, the ship lost power due to the effects of an energy dampening field originating from a planet within the nebula. The surface of the planet featured the deserted ruins of a city constructed by an advanced civilisation. (Star Trek: Valkyrie: "The Nebula")