Cygnus (constellation)

   Also called the Swan, Cygnus, is a prominent constellation in the northern sky. Cygnus is one of the most easily identified constellations and includes the Northern Cross. Its brightest object is Deneb, also called Alpha Cygni. The upper portion of Cygnus is in the densest part of the Milky Way. This area is a powerful source of radio signals that are thought to come from a collision of galaxies beyond the Milky Way. The star called 61 Cygni was the first to have its distance from earth measured. Cygnus reaches its highest point in the sky in mid-September, when it is directly overhead at the latitude of New York city.