Quote Originally Posted by Eslin View Post
...the hell? Then how the hell is the planet orbiting it? And how is it providing enough energy to support life considering the elemental plane of fire is only a few hundred degrees?

In that case, just use a regular star, they work better anyway.
It's magic, specifically the magic of Wildspace! (Also the stars are portals to the Phlogiston that connects all Crystal Spheres on the Material World. There are no "regular" stars in D&D.)