Orion's three, evenly spaced central 'Belt' stars are easy to spot and lead the way to the iconic Horsehead Nebula.Alnitak, Alnilam, and Mintaka are the three stars that make up Orion's Belt.The Flame Nebula, energized by Alnitak, can be observed with a 150mm telescope.The Horsehead Nebula, a famous dark nebula, is located south of Alnitak and can be observed with a larger telescope.