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Seeing Double
Featured on July 10, 2011
Through binoculars, the star known as Delta Lyrae resolves into two points of light, one of which looks red, the other blue. The stars are separated by more than 100 light-years, so they are not related -- they just line up in the same direction in the sky. Delta Lyrae is near Vega, the brightest point of the Summer Triangle, which is well up in the east as night falls. [Tim Jones]
