Over the course of five decades, the “Star Trek” franchise has introduced its share of exotic locales. Some are inviting, others inhospitable (especially to anyone beaming down in a red Starfleet uniform), but they’re all out there, we’re told to believe, sprinkled throughout that final frontier known as space. They bear names like Ceti Alpha V, Tycho IV, Qo’noS, Cestus III and, of course, Vulcan. On Oct. 15 — stardate 71254.1 — another strange place became a part of “Star Trek” canon. Admit it.