Sky river is the cluster of stars the makes the northern sky in the warm months. The three stars are bright Vega, in the constellation Lyra, Altair, in Aquila with star beta Aquilae; and Deneb, in the constellation Cygnrs.

North American Nebula. Left region is rich in stars clouds, bright areas of many unresolved stars, and in dark, light-absorbing clouds of gas and dust.

Astronomers think the Cygnus region belongs to the spiral arm in thich our solar system resides.

The Sun;s galactic orbital mothion takes our solar system in the direction of Cygnus, at a rate of 250 km per second. It takes us about 230 million years to make a complete orbit of our galaxy.