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Haedus

Haedus II, Hoedus II, Eta Aurigae, 10 Aurigae

Image of Hoedus II

The processes that drive blue Haedus are not yet fully documented, but its brightness seems to shift over a 24-day period. This hypothetical illustration shows the volatile star casting off a 'shell' of plasma; one among many possible causes for its apparent variability.

A variable blue star in the constellation of Auriga, the Charioteer. This star is also known as Hoedus II, but its only connection with Hoedus I (also called Saclateni) is that they appear to lie close together in the sky - in fact, they are about 500 light years apart and are quite unrelated.

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