They wouldn’t have facing crescents, for one thing. They could be on the same side, with one much further out but larger, and the planet would be in orbit around it, with the smaller, nearer body in orbit around the planet.
19 posted on 01/11/2015 6:04:07 PM PST by SunkenCiv
(Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)