眼視で220倍も掛けられないような悪いシーングで、
176倍に下げて大赤斑が見えるようになりました。
これだけシーングが悪いとピントが上手くあっているのか
不安です。日の出まで時間があったのですが、シーングが
回復しそうにないので、撮影を諦めてしまいました。
≪神奈川県  横浜市  三品利郎≫

2003/12/19 17h30m(UT)
I=292.3 II= 18.6
Seeing=3/10 Transparency=3/5
16cm Refl. x200
・CMから後方でSEBnが目立たない
・NEB内には不規則な濃淡があるようだがよくわからない

2003/12/19 18h45m(UT)
I=338.0 II= 64.0 De=-1.6 Dia=38.2
Seeing=3/10 Transparency=5/5
16cm Refl. x143
Philips ToUcam Pro 296 frames composite

2003/12/19 18h55m(UT)
I=344.1 II= 70.0
Seeing=3-4/10 Transparency=5/5
16cm Refl. x200
・RSは偏平で輪郭不明瞭、南縁が濃い

2003/12/19 19h41m(UT)
I= 12.2 II= 97.8 De=-1.6 Dia=38.2
Seeing=4/10 Transparency=5/5
16cm Refl. x143
Philips ToUcam Pro 377 frames composite
≪神奈川県横浜市泉区  堀川邦昭≫

I made an observation of Jupiter under average seeing conditions (4-5/10)
which revealed a good amount of detail over the jovian disk.
The detail observed will be noted below.
A very interesting and captivating sight was a double transit of Callisto and Ganymede over the northern hemisphere of Jupiter.
Two dark shadows were noted floating across the North Tropical Zone (NTrZ) and North Polar Region (NPR).
I welcome any comments you may have on my observation.

Date (U.T.): December 19, 2003
Time (U.T.): 06:30
L1 249.7, L2 339.7, L3 246.4
Instrument: 9-inch (23-cm) F/13.5 Maksutov-Cassegrain
Magnification: 206x and 281x
Filters: None
Seeing (1-10): 4-5, Antoniadi (I-V): III
Transparency (1-6): 2-3 (hazy)

Notes:
South Polar Region (SPR): Appears dusky to dull (4-5/10) and speckled.
South South Temperate Zone (SSTZ): Appears thin and bright (7/10).
South South Temperate Belt (SSTB): Appears dusky (4/10) and broad.
South Temperate Zone (STZ): Appears thin and bright (7/10).
South Temperate Belt (STB) Appears dark to dusky (3-4/10) with a bright (7/10) segment visible on the CM within it.
South Tropical Zone (STrZ): Appears bright (7/10) without other detail visible within.
South Equatorial Belt (SEB): Appears dark (3/10) with a thin, bright (7/10) zone dividing it.
It's southern border appears irregular composed of dark condensations.
Equatorial Zone (EZ): Appears bright (7/10) with dusky to dull (4-5/10) projections originating from festoons along the southern border of the NEB.
North Equatorial Belt (NEB): Appears dark (3/10) containing small, bright (7/10) rifts and condensations within it.
North Tropical Zone (NTrZ): Appears bright (7/10) with the extremely dark (1/10) shadow of Ganymede (disk not visible) over the following half.
North Polar Region (NPR): Appears dull to dusky (3-4/10) with the very dark shadow of Callisto visible on the CM within it.

The best of luck to you and your fellow observers/imagers. Happy Holidays and a Happy New Year to you and your family.

Carlos
[[Carlos E. Hernandez  South Florida U.S.A ]]

Hi
here is a image from  december 19, the seeing was bad 4/10 with heavy dew
but at least we can see the double transit.
(site: 38.567 N /8.933 W  Alt 124 m)
[Paulo Casquinha  Palmela, Portugal] 

ALPO-Japan Latest Jupiter Section