“y― ALPO-Japan Latest

Saturn Image 2009/02/19(UT)

Jean Jacques Poupeau,Marc Delcroix
J.J.Poupeau,M.Delcroix
Jean Jacques Poupeau (350mm Cassegrain)
with Rhea,Encelade,Dione and Tethys on 2009/02/19.

[Jean Jacques Poupeau : Pecqueuse France]
Marc Delcroix (254mm SC)
Here are images of Saturn under very good seeing (these are some of my best saturn images ever). The best image (red+infrared) shows white spots in EZn (including the one imaged regularly since weeks) and SEBz. There is also a dark spot in SEBs (or EZs?), i measured its drift rate to -22‹LIII/day.
The red image shows also an irregular SEBs edge and EZs white zones, and i made 2 images with different filters around the 889nm methane absorption band:

[Marc Delcroix Tournefeuille,France]
ALPO-Japan Latest Saturn Section
2009/02/20
2009/02/18