PIA00361: Io Surface Deposits and Volcano

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.

Cataloging Keywords:

Name Value Additional Values
Target Io Jupiter
System Jupiter
Target Type Satellite Planet
Mission Voyager
Instrument Host Voyager 1
Host Type Flyby Spacecraft
Instrument Imaging Science Subsystem (ISS)
Extra Keywords Atmosphere, Color, Crater, Storm, Volcano
Acquisition Date
Release Date 1999-08-31
Date in Caption 1979-03-05
Image Credit NASA/JPL
Source photojournal.jpl.nasa.gov/catalog/PIA00361
Identifier PIA00361