👉 An astroid is a mathematical object that appears in the study of celestial mechanics. It was named after the French physicist, Galilée (1645-1727), who first described it as "a strange and beautiful object". The astroid is an ellipsoid-shaped body with one axis aligned along the equatorial plane of the celestial sphere and another perpendicular to it.
The term "astroid" refers to this fascinating shape that appears in various mathematical models, such as celestial
astroid