I have a dictionary around here somewhere. I know I do.
Chiaroscuro: the interplay of light and shadow on or as if on a surface.So, what, would a "Chiaroscuro Orrery" be a shadow apparatus? Something showing the positions of light and shadow?
Orrery: an apparatus showing the relative positions and motions of bodies in the solar system by balls moved by a clockwork.
The Door is still there. Waiting. I don't know why. I'm never opening it again.