👉 In astronomy, a planetary is a small body orbiting another larger celestial object. It's often used to describe bodies such as moons or asteroids that are too close to their parent star for it to be considered planets. These objects can have significant impacts on their host stars and their orbits. Planetaries are also known as near-Earth objects (NEOs) in the context of space exploration, as they're within a few degrees of Earth's orbit.
