The Kohl settlement was a planet located in the Delta Quadrant. Once a major trading spot with a population of 400,000 as well as advanced technology, warp reactors and subspace transmitters, in 2353 a major solar flare occurred which caused a glacial freeze on the planet's surface. Magnetic storms and extreme levels of radiation followed. According to StarTrek.com, this planet was M-class before the solar flares. According to Star Trek: Star Charts (p. 85), this world orbited an A-class star. The USS Voyager visited this planet on stardate 49580.