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Eris and Dysnomia
Eris and Dysnomia (click to enlarge)
 
 

Eris and Dysnomia
Date: 30 Aug 2006

The Hubble Space Telescope and the Keck Observatory took images of Dysnomia's movement from which astronomer Mike Brown (Caltech) precisely calculated Eris to be 27 percent more massive than Pluto.


Last Update: 29 Mar 2011 (AMB)

Credit: NASA/ESA and M. Brown (Caltech)



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Last Updated: 29 Mar 2011