I'll have to keep an eye out for them; we shared similar beliefs, what with the waxing, the waning. I'm curious how much overlap there'll be.
It's the foundation sorcery in my world - we take the energy in glintstone crystals and use it to power our magic. Glintstone is a specific type of stone that was formed by the falling of stars, you see, so astronomy and astrology are baked right in to our magic system.