The Koinonian homeworld was an inhabited planet. This planet was home to two sentient species, the extinct corporeal Koinonian and their non-corporeal neighbors who still inhabited the desolate planet in the 24th century. The planet was classified as M-class, type 4, and was considered only marginally suitable for Human habitation. The radiation factor was measured at 6 and the result of scans for minerals were unreliable, possibly due to the radiation. It had a Freeman radius of 0.017453, a planetary body of K2, a mass of 8.02×1024 kilograms, and a circumference of 1.31×104 kilometers.