> From dpeach_78@yahoo.co.uk Sun Dec  8 12:23 MST 2002
Date: Sun, 8 Dec 2002 19:23:53 +0000 (GMT)
Subject: Jupiter images (Dec 6th, 7th.)

Hi all,

Here are Jupiter images from Dec 6th and 7th. After a
week of either terrible seeing and/or clouds the
conditions finally improved again the past two
mornings. I have "retired" the 30cm from service now,
and the superior 28cm scope replaces it for the images
on Dec 7th.

Note that the NTB is almost completely absent f. the
GRS on Dec 7th (see additional mail on this.)
Visually, all i could discern is a very faint orange
coloured band, that is hardly visible. Also, note the
array of SSTC ovals approaching passage past the GRS
(the p. one of this group of 5 is now in conjunction
with the GRS, with the small cyclonic spot bordered up
against the second SSTC oval, now seems to be fading.)

Yet again the clouds have returned, and its overcast
again - this month has been little better than England
for sunshine to date!.

Best Wishes

Damian


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JUPITER IMAGES, DECEMBER 6th, 2002

D. A. Peach, Costa del Silencio, Tenerife, Canary Isl.
12" (30.5 cm) Meade SCT @ f/21.0. SBIG ST-5c camera.
SBIG RGB Filter set.

Total Exposure Times:

Integrated Light: ~48 x 0.08 secs
R/G/B + IR Rejection: 4-6 x 0.30 secs.

Seeing poor-fair (p3-6), but far better than previous
nights.
Transparency variable, with frequent/increasing low
clouds (clouded - 5.5mag.)
Wind ENE to NE (3-5mph.)

Equatorial Diam=40.8"
Altitude= 78 degs.

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JUPITER IMAGES, DECEMBER 7th, 2002

D. A. Peach, Costa del Silencio, Tenerife, Canary Isl.
11" (28 cm) Celestron SCT @ f/31.4. SBIG ST-5c camera.
SBIG RGB Filter set.

Total Exposure Times:

Integrated Light: ~45 x 0.16 secs
R/G/B + IR Rejection: 4-6 x 0.33 secs

Seeing initially poor (p2-4.) Improved later to
fair-good (p5-8.)
Transparency variable, with frequent low clouds
(clouded - 5.5mag.)
Wind ENE  (5-10mph.)

Equatorial Diam=40.9"
Altitude= 59-68 degs.