Zeta Scorpii
Encyclopedia
The Bayer designation
Bayer designation
A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name...

 Zeta Scorpii (ζ Sco, ζ Scorpii) is shared by two star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

s in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

 Scorpius:
  • ζ¹ Scorpii
    Zeta¹ Scorpii
    Zeta1 Scorpii is a B-type hypergiant star in the constellation of Scorpius. It has an apparent visual magnitude which varies between 4.66 and 4.86...

     (HD 152236.)
  • ζ² Scorpii
    Zeta² Scorpii
    Zeta² Scorpii is a K-type orange giant star in the constellation of Scorpius...

     (HD 152334.)

They are separated by 7 arc minutes on the sky. The stars are not physically related as they are at greatly different distances from the Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...

.

All of them were member of asterism 尾 (Wěi), Tail, Tail
Tail (Chinese constellation)
The Tail mansion is one of the Twenty-eight mansions of the Chinese constellations. It is one of the eastern mansions of the Azure Dragon.- Asterisms :...

mansion.
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