Lem's "Solaris" also described a planet near double star. Don't want to argue much about imaginary worlds but how Tatooine and Solaris systems differ from each other?
The systems are different in that Tatooine (as far as I remember) orbits around a pair of stars. Solaris is orbiting between the two stars in an orbit that should be highly unstable but for reasons unknown the planet appears to be stabilizing itself.