one of the most looked at doubles in the summer sky, Alberio, or beta Cygni, in the northern part of the summer milky way.
an easy visual separation with binoculars, the color is also quite discernable in small telescopes. Magnitude 3.3 and 5.5, separation of 34 arc seconds.

this image a combination of 14 1-second exposures at iso 100, f10 on the 12-incch, captured by accident while focusing.
Combined in Nebulosity with a small gaussian blur applied in Photoshop to make the colors more visible..