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Hydrogen cloud
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The orbits of the planets and other elements of the solar system, including asteroids, Kuiper belt, Oort cloud, comet
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Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
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Hydrogen cloud: References & Edit History

Article Contributors

Primary Contributors

  • John S. Mathis
    Professor of Astronomy, University of Wisconsin, Madison.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Article title updated for style. Nov 09, 2026
Add new Web site: Swinburne University of Technology - Cometary Hydrogen Cloud. Jan 31, 2012
Article revised and updated. Sep 18, 2008
Article added to new online database. Jul 20, 1998
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