Capricornus is a southern zodiacal constellation located between Sagittarius and Aquarius on the ecliptic. Alpha, Delta and Omega Capricorni, the three brightest stars in the constellation, make a triangle that makes it easy to locate the figure of the constellation despite the stars not being very bright. Capricornus is Latin for "Horned Goat" or "Goat Horn." The constellation figure is that of a "Sea-Goat", a mythological creature that is half goat and half fish. Although Capricornus is the second faintest constellation, its mythology goes back more than 4,000 years. The Babylonians and Sumerians both referred to Capricornus as the "Goat Fish." Algedi, Alpha Capricorni, gets its name from the Arabic word for the "Goat." Algedi is a wide optical double star that is separated by 6.3 arcminutes. It can be split by the unaided eye with good vision. Alpha 2 Capricorni is a magnitude 3.57 star located 109 light-years distant. Alpha 1 Capricorni is a magnitude 4.23 star located 687 light-years distant. Both Alpha 1 and Alpha 2 are yellow giants, and both are themselves double stars.