Star Trek: The Lionhearted Wiki

USS Nebula

The USS Nebula was a Constellation class serving in Starfleet from the early 24th century until 2350.

Gedna Tachion was in the running to become her Second Officer in 2351, but the ship's destruction saw him reassigned to the USS Ambassador.  The circumstances of her destruction caused Starfleet to redesignate her class from cruiser to light cruiser.

The vessel was quickly succeeded by the prototype for the Nebula class of heavy cruisers.