The Tarantula Nebula, NGC 2070, is the largest emission nebula known, with a diameter of almost 800 light years. This detail is taken from a portion of a 35mm frame.

Astro-Physics 105mm (4.1 inch) refractor at f/4.5. Three 14-minute exposures on gas-hypersensitized Kodak Pro 400 PPF color-negative film. North is up and to the right. Photographed from near Vicuña, Chile. ©1998