Jupiter's Great Red Spot in Cassini Image

Jupiter's Great Red Spot in Cassini Image
From NASA's Planetary Photojournal
This true color image of Jupiter, taken by NASA's Cassini spacecraft, is composed of three images taken in the blue, green and red regions of the spectrum. All images were taken from a distance of 77.6 million kilometers (48.2 million miles) on Oct. 8, 2000. The resolution is 466 kilometers (290 miles) per picture element.
Different chemical compositions of the cloud particles lead to different colors. The cloud patterns reflect different physical conditions -- updrafts and downdrafts -- in which the clouds form. The bluish areas are believed to be regions devoid of clouds and covered by high haze.
The Great Red Spot (below and to the right of center) is a giant atmospheric storm as wide as two Earths and over 300 years old, with peripheral winds of 483 kilometers per hour (300 miles per hour). This image shows that it is trailed to the north by a turbulent region, caused by atmospheric flow around the spot. The bright white spots in this region are lightning storms, which were seen by NASA's Galileo spacecraft when it photographed the night side of Jupiter.
Image Title: Jupiter's Great Red Spot in Cassini Image
Catalog #: PIA02821
Photo Credit:NASA/JPL/University of Arizona
Spacecraft: Cassini Orbiter

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 Last Modified On: Saturday, February 24, 2001