Show what is the file difference between a planet an and a fl difference between comet A planet wan comet and planet arr is a solid body of rather large dy by alfred beatly lake geneva wu wis shining by deflected light which it receives from froin the sun planets are arc sometimes designated as primary or major in distinction from those of lesser proportion called secondary or minor mercury ar venus enus the earth stars jupiter saturn uranus and nep funo anno are tile alio primary planets of our solar icolar world the inferior planets ore are 28 moons and tile five hundred and more asteroids the latter having th their r orbits around the sun between mm mars a and jupiter forming a complete circle around the day star the major planets and asteroids all travel around the file sun at stated periods of time ranging from several hundred days to years which ja is tile the orbit of neptune that 11 wanderer being nearly three billion miles from the lay day star the moons and other lesser satellites all move in orbits around their mother globes similar to the journey of our moon around go lie earth which occurs approximately every 27 days A comet is a hugo collection of loose meteoric dust and gravel with ith largo quantities of hydrocarbons and free hydrogen All this loose material lias bas probably been ejected into space f from rom solar or planetary volcanic eruptions on oil approaching alio sun the lie radiant energy causes the hydrocarbons to 0 o spread in all directions around the nUCI nucleus CLIS thus forming a cloudy haze when still nearer to the lie sun the spread spreading hig particles in front are further dissipated lissi b by tile cicat and become so that the radiant energy of the sun flun overcomes their gravity and repels them into outer space where illuminated by the sun they form the luminous tails falls orbits are usually rather eccentric having C the sun for ft a focus very near to the central body or sun in their perihelion and receding to a very great distance from it at their aphelion comets never become planets nor do planets ever become comets |