👉 Ciborium is a term used in the context of astronomy, specifically in the field of planetary science. It refers to the distance between two planets that would cause their gravitational pull to cancel out each other's gravitational forces, resulting in no apparent separation at all. In simpler terms, ciborium represents an object that is so massive it will not be able to create a noticeable gravitational pull on another planet or star. The term was first used by the astronomer Carl Friedrich Gauss in his