The suns gravity. think u people!
-_- people.
The gravitational attraction of the sun causes the earth to revolve around the sun once a year.
Gravity
They revolve around the Sun - hence the term Solar System.
The Sun (helio-).
the earth
There is no Sun - Moon system The Earth revolves around the Sun, the Moon revolves around the Earth. There is a Sun - Earth system and a Earth - Moon system.
Geocentric
the earth and sunlight
geocentric
Geocentric
its photosphere
Geocentric