What celestial object has the fastest apparent motion in the sky?

The Moon: The Fastest Apparent Motion

The Moon is the celestial object with the fastest apparent motion in the sky. The apparent motion of celestial objects is a combination of their actual motion and the rotation of the Earth. As the Earth rotates on its axis, it gives the illusion that all celestial objects are moving across the sky from east to west once every 24 hours.

However, due to its proximity to Earth, the Moon has a noticeable and relatively fast apparent motion compared to other celestial objects. The Moon moves across the sky at an average rate of about 13.2 degrees per day. This rapid motion allows observers to easily notice its changing position against the background stars and planets over short periods of time.

On the other hand, stars, planets, and distant galaxies have much slower apparent motion in the sky. Their movement is primarily determined by their own motion through space and is less influenced by the Earth's rotation.