👉 The term "obtuse" is often used in physics and astronomy to describe a celestial object with an angle of rotation greater than 180 degrees. This concept is important because it helps astronomers understand how objects like planets, stars, and asteroids rotate around their centers. In the case of a planet, for example, its orbit could be described as oblate (with an angle of rotation less than 90 degrees) or prolate (with an angle of rotation greater than 1