Hand of the central one Name of the second brightest star in the constellation Orion. One of the largest stars known; if it were put in place of our own sun, its outer surface would reach Mars. The name is actually a corruption of Arabic yad al-jawzā. Jauza/Jawza originally referred to Gemini among the Arabs, but for some unknown reason they transferred it to Orion. Because of its color, Betelgeuse is sometimes referred to as the martial one