Saturn at ultraviolet wavelengths

Saturn at ultraviolet wavelengths

Fig. 10.3 . The southern hemisphere of Saturn reaches its maximum 27-degree tilt toward Earth, revealing the planetís banded clouds as well as its rings. Particles in Saturnís atmosphere and rings reflect different wavelengths of radiation in different ways, as indicated in this ultraviolet image that reveals smaller particles that do not absorb or scatter radiation at the longer visible or infrared wavelengths. Saturnís counter-flowing east-west winds have aligned the cloud particles, believed to be ammonia ice crystals, within fixed latitude bands. The rings are made up of particles of water ice. This view of Saturn was recorded from the Hubble Space Telescope on 7 March 2003. (Courtesy of NASA/ E. Karkoschka, U. Arizona.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University