Comets,++asteroids

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comets Comets are made up of ice and dust. A comet has a long oval shaped orbit. Comets who have a orbit that have far beyond the plants are called long period comets and its furthest point in its orbit could be a trillion km away from the sun, a comet that rarely moves out further then the planet jupiter. The sun vaporizes the ice on a comet as it goes past the sun. every year 6 new comets are discoverd and 700 comets have been recorded. A comets tail always faces away from the sun.



Asteroids thousands of asteroids are discovered each year. 95% of all asteroids orbit the sun. the biggest asteroid is ceres its about 933km across. . asteroids spin as they float through space. 90% of all known asteroids are called stoney asteroids because they have silicates, 5-6% are made up of metal they contain nostly nickel and iron and the rest have both.Asteroids have a very weak gravity pull but can still attract and capture smaller asteroids as their moon