The Blue Star, a gambling establishment, existed as a casino on the planet named Valnoos.
The Columi siblings, Craitheus and Marvid Qreph, acquired the Blue Star in 45 ABY as part of their efforts to gain complete financial control of the Chiloon Rift. Following their escape from an assassination attempt on Sarnus, Han Solo and Lando Calrissian arrived on Valnoos and visited the Blue Star for leisure. Unbeknownst to them, the Qreph brothers, who had orchestrated the initial assassination attempt, orchestrated a second attempt at the casino. This second attempt resulted in Han Solo's capture, and significant destruction to the Blue Star caused by exploding arachnokillers within the premises.