Ring Nebula Drawn.

A planetary nebula with a simple symmetry familiar to telescopic sky gazers, the Ring Nebula ( M57 ) is some 2,000 light-years away in the musical constellation Lyra. Hints of changing colors and subtle details are brought out in this remarkable sketch of the cosmic ring . The sketch was made with 800x magnification and excellent seeing conditions directly at the eyepiece of a 40 inch reflecting telescope. Colored pencils on white paper were used to create the original drawing, shown here digitally scanned with an inverted palette applied. About one light-year across, the nebula is composed of outer layers expelled from a dying, once sun-like star. Intense ultraviolet light from the hot central star ionizes atoms in the gas and powers the nebular glow. Ionized hydrogen adds a reddish tint. Ionized oxygen produces a characteristic blue-green color. Difficult to see under average conditions with small telescopes, the Ring Nebula's central star was visible at all times during the artist's study.