Earthsky Tonight— July 12, Summer Triangle: Vega and

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Look eastward this evening, and it’s hard to miss the season’s signature star formation, called the Summer Triangle. Its stars — Vega, Deneb and Altair — are the first three to light up the eastern half of sky after sunset, and their bright and sparkling radiance is even visible from light-polluted cities. Try looking first for the most prominent star in the eastern sky, which is Vega in the constellation Lyra the Harp. ... Full Story