Haven

Haven was a M-class planet orbiting the primary Beta Cassius. The planet was located somewhere in the Alpha or Beta Quadrant and was inhabited by a humanoid civilization. The planet was renowned for its tranquil beauty to the point that many believed it possessed mystical healing powers, though this claim was unsupported by scientific evidence. Haven had a legendary reputation as being the place where souls were mended and broken hearts were healed. The planet had at least one moon.

In 2364, the USS Enterprise-D visited Haven to receive Lwaxana Troi and Steven Miller's family. Soon after, a Tarellian starship carrying the last survivors of a plague approached the planet, seeking its reputed healing powers. The ship bypassed the system's stargate and failed to reply to attempts at communication.

First Electorine Valeda Innis entreated Captain Jean-Luc Picard to destroy the Tarellian ship before its crew could disembark and spread the plague to the population. Thanks to the intervention of Wyatt Miller, the Tarellians changed course. (TNG: "Haven")

The original graphic of the planet Haven was also used to represent the planet Bynaus in "11001001".
The Star Trek Encyclopedia, 4th ed., vol. 1, p. 329 stated that Beta Cassius was another name for Haven.

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