Wunda (crater)

File:Umbriel (moon).jpg

Wunda is a bright feature at the top of this image of Umbriel.

Wunda is a large crater on the surface of Uranus' moon Umbriel.Template:Sfn It is 131 km in diameter and is located near the equator of Umbriel. The crater is named after Wunda, a dark spirit of Australian aboriginal mythology.Template:Sfn

Wunda has a prominent albedo feature on its floor, which takes the shape of a ring of bright material at least 10 km in radial width.Template:Sfn The reason for its brightness, which stands out from the very dark composition of the moon as a whole, is unknown.Template:Sfn It may be either a fresh impact deposit or a deposit of carbon dioxide ice, which formed when the radiolytically formed carbon dioxide migrated from all over the surface of Umbriel and got trapped inside relatively cold Wunda.<ref>Template:Cite journal</ref>

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