Ayirn was the third planet in the Symbokovech star system located in the Spinward Horn of Federation space, in the Alpha or Beta Quadrant. It had a single moon and was the only class M planet in its system. It was the site of an Orion Colony, but was also a member of the Federation. It had a technological/sociopolitical index of 999974-74 and a planetary trade profile of CBCDBCD/A(B). (FASA RPG - The Orions module: Book of Common Knowledge)