👉 The term "excentrical" is a term that refers to an object or phenomenon that is not directly observable, but which has been observed through other means. In the context of astronomy, this term can refer to any celestial body that appears in the night sky and cannot be seen with the naked eye, such as the Moon, stars, planets, and comets. The concept of excentrical objects was first proposed by Albert Einstein in his 1905 paper "On the Elect