CICLOPS: Cassini Imaging Central Laboratory for OPerationS
Io Surface Deposits and Volcano

This color picture of Io, Jupiter's innermost Galilean satellite, was taken by Voyager 1 on the morning of March 5, 1979 at a range of 128,500 kilometers (77,100 miles). It is centered at 8 south latitude and 317 longitude. The width of the picture is about 1000 kilometers (600 miles).

The diffuse reddish and orangish colorations are probably surface deposits of sulfur compounds, salts and possibly other volcanic sublimates. The dark spot with the irregular radiating pattern near the bottom of the picture may be a volcanic crater with radiating lava flows.

The Voyager Project is managed for NASA by the Jet Propulsion Laboratory, Pasadena, Calif.

Acquired: March 1979
  Io Surface Deposits and Volcano
PIA 00361

Full Size 619x721:
PNG 713 KB