English The Dumbbell Nebula, Messier object 27 (M27), NGC6853, in the constellation Vulpecula, as seen by the Kitt Peak 4-meter Mayall telescope in 1973...
English The Dumbbell Nebula, Messier object 27 (M27), NGC6853, in the constellation Vulpecula, as seen by the Kitt Peak 4-meter Mayall telescope in 1973...