What term describes the clockwise direction of celestial bodies around the Sun?

The term that describes the clockwise direction of celestial bodies around the Sun is "retrograde motion." This term is used in astronomy to refer to the apparent reversal of motion of a celestial body as observed from a particular vantage point, such as Earth. In the context of the question, when we refer to bodies moving in a clockwise direction, it suggests an unusual movement compared to the standard counterclockwise motion that most planets and celestial bodies exhibit when viewed from above the solar system's north pole.

In typical scenarios, celestial bodies, including planets, tend to orbit the Sun in a counterclockwise direction due to the initial conditions of the solar system's formation. However, when a planet is observed to move in a different direction (retrograde), it is often a result of the relative positions and motions of the planets involved.

The other terms provided do not accurately capture this specific astronomical phenomenon: "reverse motion" is a more general phrase that lacks precision in an astronomical context, "rotational axis" refers to the imaginary line around which a body rotates, and "retro axis" is not a recognized term in celestial mechanics. Thus, retrograde motion is the most fitting descriptor for the clockwise movement in this scenario.