north american nebula

Encyclopedia

north american nebula

(catalog number NGC 7000), ionized-hydrogen region in the constellation Cygnus. The nebula is a cloud of interstellar gas ionized from within by young, hot stars. Interstellar dust particles in part of this cloud absorb the light emitted by recombining atoms. The shape of the nebula roughly resembles that of North America, with the dusty region being shaped like the Gulf of Mexico. The North American Nebula is approximately 520 parsecs (1,700 light-years) from the Sun. It has a diameter of about 30 parsecs (100 light-years) and a total mass equal to about 4,000 solar masses

Learn more about North American Nebula with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source
Explore Dictionary.com
Previous Definition: north american native art
Next Definition: north american plate
More from Thesaurus.com
Synonyms and Antonyms for north american nebula
More from Reference.com
Search for articles containing north american nebula
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature
FAVORITES
RECENT

;