土星 月惑星研究会 関西支部 (最新)
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Saturn Image 2002/01/07(UT)
Ed Grafton
E.Grafton
Ed Grafton (14 inch f/11 Celestron SCT, ST5 CCD 5)
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Hi Guys
The Spot first noted on Saturn 9-29-02 is still present. The URL below is a
montage from six image sets that are from 10:14 UT to 11:26 UT on October
the 7th. The original spot located at about 41 degrees South latitude can be
seen rotating toward the CM in the sequence of six images. In the last two
or three images it is suspected that atleast two other spots are present one
following the original a few degrees and about 10 degrees further north and
the other at about the same longitude as the original spot but much nearer
to the equator.
Amazingly the seeing was excellent 9/10 even though a cold front was only
hours away from passing through Houston Texas. Transparancy was generally
good 6-8/10 but was hampered by some high thin clouds that were passing
through, It was a very steamy early mourning with heavy due and a light
South wind and lots of mosquitos all of which probably carry the West Nile
Virus!
Here is the URL to a color image from the data set at 11:26 UT
The Spot first noted on Saturn 9-29-02 is still present. The URL below is a
montage from six image sets that are from 10:14 UT to 11:26 UT on October
the 7th. The original spot located at about 41 degrees South latitude can be
seen rotating toward the CM in the sequence of six images. In the last two
or three images it is suspected that atleast two other spots are present one
following the original a few degrees and about 10 degrees further north and
the other at about the same longitude as the original spot but much nearer
to the equator.
Ed Grafton
[Ed Grafton, Houston Texas]
Japanese
9月29日の点はまだ健在でした。もうひとつ低緯度にちいさなものが写っている。
透明度6-8/10 Seeing 9/10 湿度の高い重い空気。シーイングがたいへん良い。
ナイルウィルスを持った蚊がうるさくつきまとった。
(池村)蚊がいても、うらやましい観測条件ですね。いつもこんなに撮れたら、楽しい
でしょうね。
10月5日の畑中さんの画像と同様に、SEBとEZの境目が濃く、中緯度から高緯度の広い範囲に
わたって淡化しているのが、よくわかります。
また、最近、淡化が急速に進んだように思います。 木星より先に攪乱でも起る前兆でしょうか。
土星の南半球は、夏至の状態です。ここ1〜2年の間に活発な変化が現れる可能性がありますね。
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