Dysnomia (moon)

Dysnomia shown in its orbit around Eris. Eris is not as big as it appears: the image was over-exposed for Dysnomia to be visible

Dysnomia^[1] 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.^[2] It is probably about 600 km in diameter (across),^[2] although it may be up to 800 km in diameter.^[2] The moon was named Dysnomia^[3] (from the Ancient Greek word Δυσνομία that means "lawlessness") after the daughter of the Greek goddess Eris.^[4]

References and notes

↑ Formal designation: 136199 Eris I Dysnomia; Provisional designation: S/2005 (2003 UB₃₁₃) 1.
↑ ^2.0 ^2.1 ^2.2 Mike Brown. "Dysnomia, the moon of Eris". Caltech. 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. Retrieved 2011-04-02.

Dysnomia (moon) Media

Artist's conception of Dysnomia's dark surface, with dwarf planet Eris in the background
Diagram of three binary trans-Neptunian dwarf planets and their satellites with true colors, diameters, and distances to scale. Each system's barycenter position marked is in red crosshairs.

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[1] Formal designation: 136199 Eris I Dysnomia; Provisional designation: S/2005 (2003 UB₃₁₃) 1.

[brown-2] 2.0 ^2.1 ^2.2 Mike Brown. "Dysnomia, the moon of Eris". Caltech. Retrieved 2011-04-02.

[IAUC8747-3] IAU Circular 8747 - Official publication of the IAU reporting the naming of Eris and Dysnomia (PDF file)

[4] Atsma, Aaron J. "DYSNOMIA". Theoi Project : Greek Mythology. Retrieved 2011-04-02.

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