I'm working on a project building a world from the top down. What I started with was the idea of a binary system like Keplar 47. With a habitual planet with two moons. Atmosphere similar to Earth. I'm going with an idea of a 40 hour day and 40 degree axis tilt. Is such a world possible or what would need to happen to make such an environment possible. I know the seasons would be more extreme and the polor caps larger. Anything else I need to know?