Haedus is a main sequence star, but a notably large and massive example: it has a mass some five times that of the Sun, and extends to approximately four times the Sun'sdiameter. A rapidly-rotating star, Haedus has no other known companion stars or planetary bodies in its system.
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 variablebluestar 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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