Check this out!

http://saturn.jpl.nasa.gov/multimedia/imag...fm?imageID=1639

Very nice. I think one the most evocative images of Jupiter is a HST image (below) of the aurora where you can see the flux tube footprints of the largest moons. The footprint of Io is the left.

Are we gonna see something similar on Saturn with Titan/others or was that effect particular to the Jupiter system and the galilean moons?

JOVIAN DREAMS

- Solar Wind Whips Up Auroral Storms On Jupiter And Saturn

http://www.spacedaily.com/reports/Solar_Wi...And_Saturn.html

Leicester, UK (SPX) Mar 31, 2006 - Two new studies of auroras on Jupiter and
Saturn have challenged current thinking about the processes that control the
biggest light-shows in the solar system – it turns out the forces at work are
the same that produce polar auroras on Earth.

Years and years ago, at the time of the Pioneer 10 and 11 encounters, the Io flux-tube (and co-orbital atmospheric torus) were widely described. At the time, Saturn's much smaller, though still huge, magnetosphere was described as being unlikely to have similar goings-on due to the ring material. Of course, since then we found out that Jupiter also has rings, but you'd think that Saturn's ring system is so much more extensive than that of Jupiter that it would indeed eat flux-tubes for breakfast.

Bob Shaw

Nice recent URLs on Saturn's auroras (which are indeed considerably different from thsoe of both Earth and Jupiter):

http://hubblesite.org/newscenter/newsdesk/...s/2005/06/text/

http://hyperphysics.phy-astr.gsu.edu/Hbase/solar/sataur.html

http://antwrp.gsfc.nasa.gov/apod/ap990123.html