• heliocentric ⪢⪢
In a
heliocentric model the Sun, not the Earth, is in the center and all other objects including the Earth orbit the Sun. In this model the Earth is moving in two ways. It revolves arround the Sun and it also rotates on an axis.
￫ spin
http://qindex.info/i.php?x=14014
• geocentric to heliocentric
