> From jr@mole.bio.cam.ac.uk Tue Jan  8 07:32 MST 2002
Date: Tue, 8 Jan 2002 14:14:19 +0000
From: John Rogers <jr@mole.bio.cam.ac.uk>
Subject: Io on SEB


Hi all,

Some of the latest superb images from Ed Grafton and Antonio Cidadao are
assebled in the attached composite to show two features which they pointed
out at exceptionally high resolution:
i) Io in transit adjacent to its shadow: in Grafton's images, the reddish
poles and bright eq. zone are clearly shown; this must be the best amateur
image I have ever seen of Io in transit. In Cidadao's first image also,
the bright EZ seems to be resolved but it would need different
image-processing to be sure of it.
ii) The brown oval ring in STropZ: Now the S.Tropical Band has elongated
past it, it appears as a pale oval ring; and it is bright in Cidadao's
methane image. (It was also bright in images by Glenn Orton at IRTF in
Septmber, but not in later methane images by Akutsu.)

Thanks to both of you!

John Rogers.