There are 2 models

Geocentric model:

Heliocentric model

Kepler’s three laws of planetary motion (Out of portion)

  1. The law of orbits: All planets move in elliptical orbits, with the sun at one focus
  2. The law of areas: A line that connects a planet to the sun, sweeps out equal area in equal intervals (times)
  3. The law of periods: The square of the period of any planet is proportional to the cube of the semi major axis of its orbit