MONDAY, NOVEMBER 21
Vega is the brightest star high in the west after dark. Close by it are three interesting double stars for binoculars and telescopes.
Just above Vega, spot Epsilon Lyrae, the Double-Double. Epsilon forms one corner of a roughly equilateral little triangle with Vega and Zeta Lyrae. The triangle is less than 2° on a side, hardly the width of your thumb at arm’s length.
Zeta too is a double. This pair is much closer and appears single in most binoculars, but a telescope plainly resolves it.
Delta Lyrae, upper left of Zeta by a similar distance, is a much wider and easier binocular pair. Its stars are reddish orange and blue.