Celestial dynamics is the study of the motion of celestial objects such as planets, moons, asteroids and comets within our solar system and beyond. This field of research examines how these objects move and interact under the influence of gravity, as well as other forces such as solar radiation and tidal forces. Celestial dynamics also involves the study of celestial mechanics, which focuses on the mathematical modeling and prediction of the orbits and trajectories of these objects. By studying celestial dynamics, researchers can better understand the formation, evolution, and behavior of celestial bodies in the universe.