The name, closely following the original Arabic, means "the serpent's neck," the star more rarely called "Cor Serpentis," "the serpent's heart.
It is a multiple star also known as Unukalhai ("the neck of the snake") and Cor Serpentis ("the heart of the snake"). Unukalhai is part of Serpens Caput and lies 73.2 light-years from Earth.
Unuk al Hay; Unuk Elhaia; Unuk; Unukalhay; Cor Serpentis.
Alpha Serpentis
HR 5854
HD 140573 ...
Other names for this star are Unuk al Hay, Unuk Elhaia, Unuk, or Unukalhay. These names derive from the Arabic 'Unk al Hayyah, "The Neck of the Snake." Unukalhai is also known by the Latin name Cor Serpentis, "The Heart of the Serpent." ...
 See also: Sun, Star, Alpha Serpentis, Luminosity, Giant
  
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