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Arcturus
Alpha Boötis, 16 Boötis
| Arcturus is the fourth brightest star in the sky: only
Sirius, Canopus and Alpha Centauri
outshine this orange giant. It is a variable star in the last stages of its life, and
relatively nearby at just 37 light years' distance.
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eSky © copyright Mark Fisher 1999-2013
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