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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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