Hansen's Planet (also called Hanson's World) is an inhabited planet, the first planet of three located in the Beta Hydra star system, at coordinates 0.91N 2.78E (188.8 34.9 12.6). Hansen's Planet was in the general vicinity of Betelgeuse, Bellatrix and Eden, in the Federation-Romulan Neutral Zone.
In the 23rd century, Hansen's Planet had been placed under a quarantine status due to a primitive native civilization of Homo Hansonii. By reference stardate 2/2306, the world had a population of 200 million individuals. (FASA RPG module: The Federation; ST reference: Star Trek Maps)
The native beings were similar to another primitive lifeform, the Taurean anthropoid of Taurus II. The similarities were noted in a report made regarding the Taureans in 2266, when USS Enterprise Captain James T. Kirk received an update from Lieutenant Kelowitz regarding an encounter on Taurus II. (TOS episode & novelization: The Galileo Seven)
The spelling and name has varied between sources. The original episode and novelization call this Hansen's Planet, but Star Trek Maps spells it Hanson's Planet, while FASA's RPG call it Hanson's World.