According to the Newton's first law of motion,each body continues it's motion until a force is exerted.In the outer space there might be no force in the opposite direction which is capable to make the planets stationery even after the BIG BANG THEORY.
retrogade motion
Mercury and Venus are the two planets that retrograde motion around the sun.
mercurys motion can be like any other planets motion
Apparent motion of the planets.
Geocentric motion of planet is that in which earth is at the centre of the universe and all other planets revolving around it.Heliocentric motion of planets is that in which sun is the of universe and other planets revolving around it.In planetary motion all the planets includes Earth revolving around the Sun in their fixed orbit.
Actually, 3 planets rotate in a retrograde motion, which, by the way, means that they rotate East to West, or in a counterclockwise motion. Most planets rotate in a clockwise direction, or West to East. The three planets that rotate in a retrograde motion are Venus, Uranus and Pluto.venus
Envy
Tycho Brahe did not have the wrong conclusion about the motion of the planets. He was in fact very correct about his observations.
All planets orbit the sun in the direction that the sun is rotating. There are actually two planets that rotate by retrograde motion and are exceptions to this rule. These planets are Venus and Uranus.
Well a good answer for that would be there are many different motions for different planets but if you want to know are universe planets motion it all rotates around the sun.
movement of stars and planets
Planets