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Dysnomia is the only known moon of the dwarf planet Eris. It was found on September 10, 2005 by Michael E. Brown and his team at the W. M. Keck Observatory. It is probably about 600 km in diameter (across), although it may be up to 800 km in diameter. The moon was named Dysnomia (from the Ancient Greek word Δυσνομία that means "lawlessness") after the daughter of the Greek goddess Eris.
References and notes
- Formal designation: 136199 Eris I Dysnomia; Provisional designation: S/2005 (2003 UB313) 1.
- Mike Brown. "Dysnomia, the moon of Eris". Caltech. http://web.gps.caltech.edu/~mbrown/planetlila/moon/. Retrieved 2011-04-02.
- IAU Circular 8747 - Official publication of the IAU reporting the naming of Eris and Dysnomia (PDF file)
- Atsma, Aaron J.. "DYSNOMIA". Theoi Project : Greek Mythology. http://www.theoi.com/Daimon/Dysnomia.html. Retrieved 2011-04-02.