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umbra: see eclipse; sunspots.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on umbra from Infoplease:

  • sunspots - sunspots sunspots, dark, usually irregularly shaped spots on the sun's surface that are ...
  • eclipse - eclipse eclipse [Gr.,=failing], in astronomy, partial or total obscuring of one celestial body by ...
  • umbra: meaning and definitions - umbra: Definition and Pronunciation
  • Suggestions for spelling of encyclopedia/umbra - The Infoplease spelling checker combines spelling help with our dictionary and thesaurus
  • Umbra - Umbra Obsequious Umbra, in Garth's Dispensary, is Dr. Gould. Source: Dictionary of Phrase and ...

See more Encyclopedia articles on: Astronomy: General

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