... of the comet was reported as "most unusual": the object appeared as a "dense linear bar'' with a "fainter, wispy tail ... and the gas, in turn, blows away bits of the solid material and forms the extended gas and dust tails we associate with comets ...
... Comets: Although we wouldn't be able to see a comet's nucleus at this scale, we would be able to see its tail. ... Comettails can reach 6 million miles in length, which would be five feet on this scale! ...
... Comet: A small chunk of ice, dust, and rocky material (only a few miles across) which, when it comes close enough to the Sun ... Tails of comets are made of gas and dust that have been driven off the comet's surface by the Sun's energy and they always ...
... Comets: Although we wouldn't be able to see a comet's nucleus at this scale, we would be able to see its tail. ... Comettails can reach 6 million miles in length, which would be five feet on this scale! ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/70/uitc070.pdf -- 2511.9 Кб -- 02.10.2012 Похожие документы
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... If the comet gets close enough to the Sun, radiation pressure from sunlight pushes some of the dust away from the Sun, creating a long tail of dust. ...
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