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Ring detected around a dwarf planet

Observations of the distant dwarf planet Haumea constrain its size, shape and density, and reveal an encircling planetary ring. The discovery suggests that rings are not as rare in the Solar System as previously thought. See Letter p.219

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Figure 1: Artist's impression of Haumea and its ring.


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Correspondence to Amanda A. Sickafoose.

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Sickafoose, A. Ring detected around a dwarf planet. Nature 550, 197–198 (2017).

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