This is an enlargement of the area around the Bubble Nebula. NGC7635 (The Bubble Nebula) is the emission nebulosity located at lower center. The dimensions are 3,5'X 3', and the integrated magnitude is 8,5. At upper left is M52 (NGC7654), a beautiful open cluster containing 120 stars, with 13' of extension. At right of the Bubble is visible NGC7538, another diffuse emission nebula of integrated magnitude 10 and extended for 10'.