土星 月惑星研究会 関西支部
Saturn Image 2007/02/07(UT)
中村淳一,瀧本郁夫,熊森照明,柚木健吉,永長英夫
David Arditti,Christopher Go
J.Nakamura,D.Arditti,Christopher Go,I.Takimoto,T.Kumamori,K.Yunoki,H.Einaga
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Junichi Nakamura(254mm Newtonian) |
新規鏡筒の口径ですが、微妙な数値ですが254mmでありました。もし、正確を
帰すようでしたら、ご変更をお願い致します。
また、160mm口径も今後TPOで、併用して参ろうと考えております。
（鏡面精度は160mmの方が俄然良いようです。）
コメント：
衝に向けて、ハイリゲンシャイン効果が顕著になって来ました。眼視でも本体手前の
輪が、本体よりもかなり明るく白く輝いていました。
また、ZE部に、白いムラが感じられ、1/29日の瀧本さんの報告を思い出しました。
ハイリゲンシャイン効果の画像ですが国立天文台の画像解析ソフト「マカリ」を
使って、グラフによる輝度分布図も加えた画像を作りました。
Junichi Nakamura (Tokyo,Japan)
≪東京都 国分寺市 中村淳一≫
|
David Arditti (250mm Dall-Kirkham Cassegrain) |
It was "a bit parky" here this morning,temp. about -4C. I resorted to the
heated summer house for remote imaging,only coming out to change the filter.
Seeing was of a blurry species. However,Registax has done well to reveal some
ring details. Nothing new on globe,but the rings are taking on that 'glowing'
effect just prior to opposition,which evidences itself most in the blue.
Here is something a bit different.
On February 07, three days before the opposition of Saturn, all the bright
satellites were almost in a line, with Titan close to greatest western
elongation, Iapetus about two-thirds of the way to greatest western
elongation, and several others close to greatest eastern elongation.
This image is a composite of an image derived from a sequence of 0.8s exposures
taken at short focal length to show all the satellites in one frame, and an
image derived from webcam videos consisting of 0.1s exposures, taken at long
focal length, to shown the planet's details and colours.
The whole of the long-exposure image is shown in the inset.
In the composite, the sizes of the satellite disks do not represent true sizes
in respect to Saturn, obviously. They are just indicative of brightness.
The time given is for the satellite image. The planet was imaged about an hour
earlier.
[David Arditti: Edgware Middlesex HA8 5LW: United Kingdom]
|
Christopher Go (Celestron C11) |
Seeing was very good this evening. This allowed me to get his very sharp image of Saturn. Note the very bright ring and the pale disk of Saturn compared to my earlier images below. This is the Seeliger Effect which occurs during opposition. This year opposition will be on Feb 12.
Note also the Cassini division in front of Saturn's disk,you can see some parts of the disk through the CD!! Again the SEB and STB of Saturn is quiet at this location.
Here are more images from last nights session!
[Christopher Go : Cebu Philippines]
|
Ikuo Takimoto (310mm Newtonian) |
コメント：昨日よりも透明度が改善したが、シーイングは悪化した。
一昨日よりも、ハイリゲンシャイン効果が増したようです。
[Ayauta-gun Kagawa-Prefecture Japan]
≪香川県 綾歌郡 瀧本郁夫≫
|
Teruaki Kumamori (200mm Dall-kirkham) |
透明度良く晴れましたが、、土星は小刻みに跳びはねていました。
≪大阪府堺市 熊森照明≫
|
Kenkichi.Yunoki (260mm Newtonian) |
[Kenkichi Yunoki (Sakai City Japan)]
≪大阪府 堺市 柚木健吉≫
|
Hideo Einaga (250mm Newton) |
[Hideo Einaga Kasai-City Hyogo-Prefecture Japan]
≪兵庫県 加西 永長英夫≫
ALPO-Japan Latest
