Advertisement.

EnchantedLearning.com is a user-supported site.
As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages.
Click here to learn more.

ad
(Already a member? Click here.)

Our subscribers' grade-level estimate for this page: 4th

EnchantedLearning.com

comet

A comet is a small, icy celestial body that orbits around the Sun. It is made up of a nucleus (solid, frozen ice, gas and dust), a gaseous coma (water vapor, carbon dioxide, and other gases) and a tail (dust and ionized gases). Its long tail of gas and dust always points away from the sun, because of the force of the solar wind. The tail can be up to 250 million km long, and is most of what we see. Comets are only visible when they're near the sun in their highly eccentric orbits.



Enchanted Learning Search

Search the Enchanted Learning website for:



Advertisement.



Advertisement.



Advertisement.



Copyright ©2001 EnchantedLearning.com ------ How to cite a web page