Triton, largest satellite of Neptune

Triton is the largest satellite/moon of the planet Neptune and was discovered by British astronomer William Lassell on October 10, 1846.

Triton - NASA
JPL’s Voyager 2 mission took this picture of Triton’s southern pole

Voyager 2 took this close up image of satellite Triton during a close flyby on August 25, 1989. This composite image was constructed using about a dozen pictures and the colour correction was added to the lower resolution images.  Triton is relatively flat with some  outcrops, ridges, plateaus, icy plains and a few craters. The large south polar cap at the bottom of the image is highly reflective and slightly pink in color; it is believed that it may consist of a slowly evaporating layer of nitrogen ice deposited during the previous winter.

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