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Shiva Omicron IV was the fourth planet of the Shiva Omicron star system, in Federation space.
One of its cultures was the gray-skinned Jerion, who were exterminated with the assistance of Captain Joshua Grant of the USS Galahad around 2210, in a monumental violation of the Prime Directive.
By 2270s, had begun preliminary negotiations to join the Federation. (TOS video game: 25th Anniversary)