Io - Galileo

Io hemisphere facing away from Jupiter

This Galileo image of Jupiter's moon Io was produced from a number of high resolution images taken on 6 November 1996 and enhanced color images from 7 September 1996. This shows the hemisphere which faces away from Jupiter. The variation in color is due to sulfur-rich compounds. The black, gray, and red regions due to recent volcanism - Io is the most volcanically active body in the solar system. The topographic and color variations are dramatic. The high resolution images were taken at distances ranging from 245,000 to 403,000 km. The smallest discernable features are about 2.5 km in size. Io is 3640 km in diameter and north is up. (Galileo, P-48487)
Larger image (234K) jpg

High resolution tif file (9.5M)

Location & Time Information
Date/Time (UT): 1996-09-07
Distance/Range (km): 403,000.
Central Latitude/Longitude (deg): N/A
Orbit(s): Flyby

Imaging Information
Area or Feature Type: global view
Instrument: Solid State Imaging CCD Camera
Instrument Resolution (pixels): 800 x 800, 8 bit
Instrument Field of View (deg): 0.46 x 0.46
Filter: near-infrared, green, violet
Illumination Incidence Angle (deg): N/A
Phase Angle (deg): N/A
Instrument Look Direction: N/A
Surface Emission Angle (deg): N/A

Ordering Information
CD-ROM Volume: N/A
NASA Image ID number: P-48487
Other Image ID number: MRPS-79053
NSSDC Data Set ID (Photo): NSD XD-12A
NSSDC Data Set ID (CD): N/A
Other ID: N/A


[NASA Logo] Authors/Curators:

Dave Williams,, (301) 286-1258
Code 690.1, NASA Goddard Space Flight Center
Greenbelt, MD 20771, USA

Jay Friedlander,, (301) 286-7172
Code 612.4, NASA Goddard Space Flight Center
Greenbelt, MD 20771, USA

NASA Official: Ed Grayzeck,

Last updated: 24 September 2015