Tau Ceti IV Tau Ceti IV was a planet in the Tau Ceti star system. It is also home to a human colony with a population of 10'000. Retrieved from "http://scratchpad.wikia.com/wiki/Tau_Ceti_IV_(Preserve)?oldid=332086" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.