The processes that drive blue Haedus are not yet fully documented, but there is some evidence that its brightness may shift very slightly 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 Haedus II or Hoedus II, but its only connection with Haedus I (also called Saclateni) is that they appear to lie close together in the sky - in fact, they are about five hundred light years apart and are quite unrelated to one another.
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