The Dumbbell Nebula lies in the constellation Vulpecula. It is also known as Messier 27 (M27) or NGC 6853. This image was made by the 0.8-meter Telescope at McDonald Observatory with the Prime Focus Corrector instrument. To obtain a color image, three exposures were added together, one made with a red filter, one with a green filter, and one with a blue filter. Credit: Mary Kay Hemenway/AASTRA teacher program/McDonald Observatory.