Surrounded by a Dyson swarm. At the time it was discovered, "cog" was a disrespectful term some humans used to refer to vecs, hence the vec colony was discovered in 1698 AT, was labeled "Cog" by the sensationalist media. The name stuck, and eventually acquired a certain sense of prestige.
The Cog swarm habitats were each inhabited by a different 'CogNation', some of which, such as the Emotive CogNation, were fiercely independent. The Emotives were involved in a bitter war with the Metasoft vecs of Rigel during the Second Federation era.