This animation shows how Copernicus's heliocentric model could reproduce planetary retrograde motion for a superior planet (i.e. a planet whose orbit lies outside of earth's orbit).
If you track the position of the planets amongst the constellations, the planets usually move eastward but occasionally do a temporary westward motion called retrograde motion. In the case of mars, this apparent "backwards" motion happens when earth passes mars as they both orbit the sun.
i still dont get it
SoldierCyfix 4 years ago
If you track the position of the planets amongst the constellations, the planets usually move eastward but occasionally do a temporary westward motion called retrograde motion. In the case of mars, this apparent "backwards" motion happens when earth passes mars as they both orbit the sun.
mrg3 4 years ago