Tenuous Clouds on Triton Target Name:   Triton Spacecraft:   Voyager 2 Produced by:   Calvin J. Hamilton Copyright:  © 1999 Calvin J. Hamilton Date Released:  28 January 1999 (Publisher Permission Request)

• Neptune's Moon Triton

This image of Triton shows a thin cloud layer along the limb of the moon. The image was obtained as Voyager 2 swept past Triton at a speed of 27 kilometers per second and passed within 39,800 kilometers. Voyager discovered that Triton possessed a thin atmosphere of 15 microbars or 0.000015 times the surface pressure on Earth at sea level. The limb of Triton also showed a thin haze about 13 kilometers from the surface of the planet and thin patches of clouds as shown by this image.