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The fourth-brightest star in the sky, and the brightest in the constellation Boötes. It is an orange giant.
From Greek arktos 'bear' + ouros 'guardian' (because of its position in line with the tail of Ursa Major).
The fourth brightest star in the sky, and the brightest in the constellation Boötes. It is an orange giant.
From Greek arktos ‘bear’ + ouros ‘guardian’ (because of its position in line with the tail of Ursa Major).
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