This ultraviolet view shows wavy cloud bands near Saturn's south polar
region. Though the region has some visible features, strong contrast
between light and dark cloud bands is notably absent, as are bright and
dark spots.
The eye is drawn to a bright wedge near the lower-left limb (apparent
edge) of the planet. That wedge falls in a latitude band that borders a
darker latitude band a little closer to the pole. Viewing the limb of the
planet in ultraviolet light allows scientists to study the high part of
the atmosphere (the stratosphere). Scientists can discern from this image
that the stratosphere in this latitude band is relatively pure hydrogen
and helium and contains very little of the stratospheric haze that causes
darkening closer to the pole.
This view was taken with the Cassini spacecraft narrow angle camera on
July 21, 2004, at a distance of 6.4 million kilometers (4 million miles)
from Saturn. The image scale is 38 kilometers (23 miles) per pixel. The
image was taken using a spectral filter centered at 298 nanometers, and
reveals different details in the gas giant's atmosphere than those seen
in longer wavelengths. Contrast was slightly enhanced to bring out
features in the atmosphere.
The Cassini-Huygens mission is a cooperative project of NASA, the
European Space Agency and the Italian Space Agency. The Jet Propulsion
Laboratory, a division of the California Institute of Technology in
Pasadena, manages the Cassini-Huygens mission for NASA's Office of Space
Science, Washington, D.C. The Cassini orbiter and its two onboard cameras,
were designed, developed and assembled at JPL. The imaging team is based
at the Space Science Institute, Boulder, Colo.
For more information, about the Cassini-Huygens mission visit,
http://saturn.jpl.nasa.gov and the Cassini imaging team home page,
http://ciclops.org.
