Lyra, the lyre, is a small but distinctive constelllation that is high overhead during summer and early fall evenings. It can be found by first locating blue-white Vega, one of the brightest stars in the sky at magnitude 0. Along with Vega, the main stars of the constellantion form a small parallelogram and a small equilateral triangle. At the far corner of the triangle is epsilon Lyra, commonly known as the "double-double." Individuals with exceptional eyesight can just barely detect that epsilon is a double star without optical aid. (At the resolution of this picture, epsilon appears elongated, but its stars are not clearly separated.) Through a telescope with medium to high magnification, each of epsilon's two components is seen to be a close double star by itself. Another well-known object in the constellation is Messier 57, the Ring Nebula.