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Sedna
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Introduction References & Edit History Related Topics
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Observe the location of the orbit of “Sedna” (red) in relation to the rest of the solar system
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Sedna: References & Edit History

Article Contributors

Primary Contributors

  • Kenneth Brecher
    Professor of Astronomy and Physics; Director, Science and Mathematics Education Center, Boston University.

Other Encyclopedia Britannica Contributors

Article History

Type Description Contributor Date
Add new Web site: ESO Sciences - Astronomy and Astrophysics - Is Sedna another Triton? Oct 11, 2024
Add new Web site: The Planets - Sedna Facts. Dec 20, 2023
Add new Web site: Space.com - Sedna: Possible Dwarf Planet Far From the Sun. Oct 07, 2022
Add new Web site: British Broadcasting Corporation - Sedna. Apr 29, 2013
Farthest distance from the Sun updated from 981 to 1,007 times the Earth-Sun distance. Orbital period updated from 12,159 to 12,599 years. Feb 14, 2012
Video of Sedna's place in the solar system added. Jul 13, 2011
New article added. Apr 08, 2009
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