Sigma Scorpii and the globular cluster M4. On the left side of the picture begins the Antares nebula
Two stars of similar brightness in the constellation Scorpius with the same Arabic name, meaning "artery.
Sigma Scorpii: a double with faint companion. AB: 2.9, 8.5; PA 273, separation 20".
[7526] sigma Scorpii is also known as Al Niyat ("the arteries"), a name it shares with [7524] tau Scorpii. It is another multiple star, 735 light-years distant. Its primary component is a blue-white giant classified as a Beta Cephei variable.
It is flanked by two stars that together are Al Niyat, the one to the upper right Sigma Scorpii, the one to the lower left Tau Scorpii.
Al Niyat Sigma Scorpii
Alphard Alpha Hydrae
Alphecca Alpha Coronae Borealis
Alpheratz Alpha Andromedae
Alrai Gamma Cephei
Alrakis Mu Draconis
Alrami Alpha Sagittarii
Alrischa Alpha Piscium
Alruccabah Alpha Ursae Minoris
Alsafi Sigma Draconis ...
Al Niyat
The name Al Niyat comes from the Arabic ا"نيا- an-niyāţ meaning "the arteries [of the scorpion]", and refers to two stars which flank Antares, the scorpion's heart:
* Sigma Scorpii
* Tau Scorpii ...
 See also: Antares, Sky, Scorpius, Cluster, Light
  
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