Tau Scorpii [SEP] constellation
Tau Scorpii
Tau Scorpii (τ Sco, τ Scorpii), formally known as Paikauhale , is a star in the southern zodiac constellation of Scorpius. The apparent visual magnitude of Tau Scorpii is +2.8, while parallax measurements yield a distance estimate of roughly 470 light-years (150 parsecs) from Earth.
Description.
Compared to the Sun, Tau Scorpii is a massive OB star with 15 times the Sun's mass and more than six times the radius of the Sun. It is radiating about 20,400
Tau Scorpii estimates its effective temperature to be 29,850 kelvins with a luminosity of 20,400 Suns, consistent with an isochronal age of 5 million years and an estimated mass of 14.5–14.7 solar masses.
Nomenclature.
"τ Scorpii" (Latinised to "Tau Scorpii") is the star's Bayer designation.
Tau Scorpii and Sigma Scorpii together bore the traditional name "Al Niyat" (or "Alniyat") derived from the Arabic النياط "al-niyāţ" "the arteries" and referring to their position flanking the