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A new type of aurora called "The Dunes"

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jimmy m
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30 Jan 2020, 1:46 pm

A new type of aurora is rippling across Arctic skies. Citizen scientists who discovered it nicknamed it “The Dunes” because of its resemblance to desert sand dunes.

Image

Dunes are located ~100 km high–smack-dab in the middle of the ignorosphere–and have a pure, monochromatic wavelength of about 45 km.

Image

Source: A New Form of Auroras: “The Dunes”


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