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Anatomy of a Comet

Anatomy of a Comet
Hi-Res JPEG (134 KB)

A comet is commonly described as having 3 parts:

Nucleus - the dark dirty snowball composed of ice, dirt, rock and gas
Coma - the halo of gas, ice and rock bursting forth from the nucleus
Tail - in this case, both the dust and ion tail

More:

CREDIT: NASA/JPL-Caltech/UMD.

 

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