火星 月惑星研究会 関西支部

Mars Image 2006/04/26(UT)

Christophe Pellier
Christophe.P
解説（安達）
　Christophe　Pellier氏の画像に、白雲のベルトが記録されました。
アラビア（Arabia；３２０Ｗ，＋２５）からイシディス（Ishidis；
２６８Ｗ，＋２３）付近にかけて、白雲が顕著に見られます。画像の
矢印の部分が最も白くはっきりしていますが、その南方も淡く広がっ
ているようで、この時期から見え始める、程度地方の氷晶雲のように
見えます。（reported by one observer)

Ｗhite　clouｄ　belt was recorded in the image of Christophe　
Pellier.　It was put around Isidis　（２６８Ｗ，＋２３） from 
Arabia　（３２０Ｗ，＋２５）, and a white cloud was seen 
remarkably.　The part of the arrow of the image is the brightest,
and then clear.　But, that south seems to spread out faintly, 
too.　It seems to be water　ice　cloud of the low latitude which 
it can begin to see from this time.
（reported by one observer)
FROM Makoto Adachi
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Christophe Pellier (C14 ; L075M)
I think that the B image clearly shows the Equatorial cloud band (ECB). The ECB formed first during northern spring when the water vapor released by the sublimation of the NPC is important enough. It lies not on the equator itself but between the equator and the Lion tropic (on Mars !) at a latitude of 25°N. This is seen on the image, the belt is in the northern hemisphere.
I wasn't hoping this detail on a 5" disk...

[Christophe Pellier Bruz City,France]
ALPO-Japan Latest Mars Section
2006/04/27
2006/04/25