the sun orbiting the space occurs once per year
world is in_orbit_about_sun. geosynchronous_orbit is orbit. earth's_orbit has sun_near_centre sun is orbited_by_earth. sun is orbited_by_nine_planets. international_space_station is orbiting_earth. find_orbiting_earth's_sun is venus. universe has sun_and_earth orbit_period is period. space_age is time.