土星 ALPO-Japan Latest

Saturn Image 2010/04/17(UT)
三品利郎,中井健二,山崎明宏
Bela Berente,Martin R Lewis,Kowollik Silvia,Gerald Stelmack
T.Mishina,K.Nakai,A.Yamazaki,B.Berente,Martin.L,K.Silvia,G.Stelmack

Toshirou.Mishina (200mm Newtonian)

≪神奈川県  横浜市  三品利郎≫

Kenji Nakai(LX200 254mmF10SC)
Saturn 2010/04/17 12:37:14(UT)
LX200GPS-25(254mm Schmidt Cassegrain f/10)
2.5X Powermate+DFK21AU04
exp.:1/15sec. 15fps 90sec.
comment:
撮影開始後すぐに雲が襲来していい画像が得られなかった。

≪広島市  中井健二≫

Akihiro.Yamazaki(125mm ref 200mm MC)
2010/4/17 16:16:30(UT)
コメント:しかし天気が長続きしません。寒いし、シーイング
は良くないし、仕事は忙しいしで、三重苦です。

[A.Yamazaki: Machida Tokyo Japan]

Bela Berente(250mm reflector)

[Bela Berente: Hungary]

Martin R Lewis (222mm Newton)
Here is a view of Saturn taken in occasionally good seeing last Saturday evening from my back garden in StAlbans,UK.
Why are the evenings of best seeing always on a Sat. night?- my wife wants to know..

[Martin R Lewis: Hertfordshire United Kingdom]

Silvia Kowollik (800mm Cassegrain)
80 cm mirror at the german Observatory
Zollern-Alb.

The sky was clear,no clouds,no polls,no wind and only a 5.2 mag sky
:-((...

Transparency was 0.7 mag under averidge,I belive the ash layer from the
volcano Eyjafjallajokull in Iceland was the reason for yellowish dawn,
dusty view and strange colours on my planet images.

Our Observatory is 150 km north of the european Alps,there the winds
from north often compress normal (water-) clouds,maybee the volcanic
ash cloud
also was compressed? There are still no exact Data about the number of
particles availiable,but now the airplanes fly again...

Normally the green image is the brightest one and I use the green
channel to fix sharping point and exposer time. This time I had to
reduce the exposer time at red channel,because it was overexposed ...

Each channel 1200 images,1/281 sec Exposer time (red 1/350 sec),10 %
used...

[Silvia Kowollik  Ludwigsburg,Germany]

Gerald Stelmack(235 mm SC)
2010/04/17 (GS Sat-2010-04-17)   03:52 UT
CM1=353.6 CM2=148 CM3=228.9
Mag = 0.7  Dia = 19.2"
C9.25 (235 mm) DMK 21AF04.AS
Astronomik LRGB Type 2  Seeing: 6/10

[G.Stelmack : Canada]

ALPO-Japan Latest Saturn Section
2010/04/18
2010/04/16