Prograde rotation indicates that the motion is in the same direction as the Sun’s rotation. Retrograde rotation is in the opposite direction.  

• Most planets in our solar system, including Earth, rotate counter-clockwise or prograde direction, but Venus and Uranus are said to have a retrograde or clockwise rotation around their axis.  
• The tilt angle of a planet is measured relative to the orbital plane of the planet, and most planets’ axes form an almost perpendicular angle to the orbital plane. 
• Venus, twice the distance away from the sun, is the next closest planet after Mercury. It is often considered as Earth’s twin because of their close proximity in size, mass and density. 

Source: G C leong