Kasan (RS 1190-464-9-72965422-29 in 0.9.7.4 beta patch 7) is a binary star system located in the Triangulum galaxy almost 3 million light years from Earth. It is the star system home to the alien planet Arc'Til.
The star system is about 9.8 billion years old with ten planets. Four planets orbit Kyser (Kasan A) and another four orbit Eryna (Kasan B). In the outer region of the star system, two planets orbit which are believed to be perturbing the orbits of comets in the Kasan Oort Cloud. Comets in the Kasan Oort Cloud usually have extremely elongated orbits due to the powerful gravitational influence from both stars closer into the system.