The Nul system is an unclaimed planetary system that consists of a type G cepheid variable star and five planets. Discovered in SEY 2290 by navjumper Antoine Lebec, it was one of the first systems visited and charted by Humans after Croshaw in 2271 and Rhetor in 2287. The planets of Nul are all located outside the system's green band save for Cole (Nul III), which has resisted all terraforming attempts thanks to its dense and stormy atmosphere.
Nul remained mostly uninhabited until 2571, when the UEES Olympus crashed into Ashana (Nul V) while pursuing anti-Messer activists. Tevarin expatriates have claimed the crashed ship along with the abandoned infrastructure left behind from past enterprises.