👉 The term "chamaepericlynum" is a term used in the context of ancient Mesopotamian mathematics, specifically in the field of astronomy. It refers to an astronomical unit (AU) that represents the distance between the Earth and Sun, which was approximately 149,600 AU at the time of its discovery by Babylonian astronomer Ptolemy. In this context, "chamaepericlynum" is a symbol used to denote the distance