Ko te ara i te ātea e huri haere ai tētahi ao iti i tētahi atu ao nui. He pororapa te āhua o te amionga o ngā aorangi i te Rā. Ko te tō ā-papa o te Rā me te ānga o ngā aorangi e pupuri ana i ngā aorangi ki te ara amio. He wāhi korekore te ātea, nō reira kāore he tōpana waku hei ātete i te amio haere tonu o ngā aorangi.
The path through space by which a smaller body rotates around a larger body. The orbit of the planets around the Sun is elliptical. The gravity of the Sun and the momentum of the planets keep them in their orbit. Space is a vacuum, therefore there is no friction to oppose the continuing orbit of the planets.