Sigma-Tau - Name

Name

Sigma and Tau are the two stars that flank Antares at the centre of the Scorpius constellation. Arabs considered the red Antares the heart of the constellation and therefore regarded the bright stars positioned beside it – Sigma Scorpii and Tau Scorpii – as the arteries leading away from the heart, as indicated by the term that describes them both (Al Niyat, meaning the arteries).