The American and Russian Sleeper ship Betelgeuse had crashed on Henson's World. There the survivors had degenerated into a primitive culture without any memory or records of their origins. In 2239 the survivors were found on the planet by the Federation. However since the ship had been launched before the founding of the Federation, it was ruled that the inhabitants on Henson's World were now under the protection of the Prime Directive. (TNG novel: The Forgotten War)
- The origin of the planet name was not revealed in the novel.