Orion Constellation, its brightest stars are blue-white Rigel (Beta Orionis) and red Betelgeuse (Alpha Orionis). Orion’s Belt is formed by three bright stars – Alnilam, Mintaka and Alnitak To locate this constellation, look for the three stars in a row that make Orion’s Belt, and now Orion’s Belt appear almost horizontal Betelgeuse red star and Rigel blue-white Sirius twinkle star white blue, left from Rigel one easy way to find Sirius is to locate Orion colors and letters