Want this question answered?
retrograde motion
All the models explain retrograde motion because it is such an obvious phenomenon. In Copernicus's model an outer planet goes into retrograde motion when the inner planet overtakes it so that it appears from the inner planet to be going backwards along the ecliptic.
Venus has no natural satellites and retrograde motion (orbits opposite direction it rotates).
The retrograde motion of a planet is the optical illusionthat a planet reverses its orbital direction, as seen from Earth.In reality, the planet does not change direction at all, but because the Earth is also orbiting the sun, the relative motion of the Earth and another planet in their respective orbits make it appear to us as if the planet reverses course for a while.
retrograde motion
retrograde motion
venus
The "apparent" reverse or backwards motion of a planet as observed from Earth. The innermost planets appear to have a retrograde motion when viewed from Earth.
Venus.!
venus
Superior planets are in opposition when in the middle of their retrograde motion.
Retrograde motion.
neptune
All the models explain retrograde motion because it is such an obvious phenomenon. In Copernicus's model an outer planet goes into retrograde motion when the inner planet overtakes it so that it appears from the inner planet to be going backwards along the ecliptic.
Venus has no natural satellites and retrograde motion (orbits opposite direction it rotates).
"retrograde motion"
You observe its motion, with respect to the background stars.