21073 Darksky

21073 Darksky (provisional designation: 1991 RE) is a main-belt minor planet. It was discovered by Robert H. McNaught at the Siding Spring Observatory in Canberra, Australia, on September 4, 1991. It is named after Dark Sky Scotland, an astronomy education program in Scotland.

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(21072) 1991 PU8 21073 Darksky 21074 Rügen

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