Magnitude 5.08 Apparent magnitude (V) 5.08 | Constellation Capricornus | |
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Pi Capricorni (π Cap, π Capricorni) is a double star in the constellation Capricornus. It also has the traditional star name Okul or Oculus (meaning eye in Latin). It is approximately 670 light years from Earth.
In Chinese, 牛宿 (Niú Su), meaning Ox (asterism), refers to an asterism consisting of π Capricorni, β Capricorni, α2 Capricorni, ξ2 Capricorni, ο Capricorni and ρ Capricorni. Consequently, π Capricorni itself is known as 牛宿四 (Niú Su sì, English: the Fourth Star of Ox.)
The primary component, π Capricorni A, is a blue-white B-type bright giant with an apparent magnitude of +5.08. It is a spectroscopic binary whose two components are separated by 0.1 arcseconds. The third component, π Capricorni B, is an eighth magnitude star 3.4 arcseconds from the primary.