This nebula resembles an eye, with the "pupil" immediately around the star appearing a light blue, the "iris" fading into a mixture of blue, orange, and red with a yellow-orange ring around it, and the sclera appearing bright red-orange.

C63 (NGC 7293) – The Helix Nebula

This photograph of the coil-shaped Helix Nebula is one of the largest and most detailed celestial images ever made. The image shows a fine web of filamentary "bicycle-spoke" features embedded in the colorful red and blue ring of gas. At 650 light-years away, the Helix is one of the nearest planetary nebulae to Earth. A planetary nebula is the glowing gas around a dying, Sun-like star.

Credits: NASA, NOAO, ESA, the Hubble Helix Nebula Team, M. Meixner (STScI), and T.A. Rector (NRAO)