火星 ALPO-Japan Latest

Mars Image 2020/04/05(UT)
井上 修
Clyde Foster
C.Foster,O.Inoue

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解説（安達）/ Comment by Makoto Adachi
　ヘラス南東方向のエッジダストストームはほぼなくなり、ヘラス(Hellas;275~315W,-30~60)の形が分かるようになった。Clyde Foster氏
の青画像では、SPC内部のむらやヘラスに淡い白雲が見られる。

The edge dust storm in the southeast direction of Hellas has almost disappeared, and the shape of Hellas (275 ~ 315W, -30 ~ 60) has 
become apparent. In the blue image of Mr. Clyde Foster, pale white clouds can be seen in the unevenness and Hellas inside the SPC.

（by 2 observation; reported by Makoto Adachi)
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I had to contend with some mist and heavy dew this morning after a few days of soaking rain.
I have pushed the processing a bit harder than usual,as there are a few interesting features to note:
a) The recent dust activity in Hellas appears to be continuing with a J structure (R and G). The structure is almost spiral in the B.
b) In both my own (and others) recent images I have noted the linear feature that appears to circumnavigate the planet just below the SPC.
I am wondering if this is some form of jet stream that is carrying dust from the currently active Hellas and Argyre basins?
c) Damian Peach recently commented on the almost invisible Nodus Alcyonis,which also seems to be the case in my image.
It is interesting that the RGB almost gives the impression that this whole region is obscured,
although the R image does not seem to indicate excessive dust. Comments welcome.

[Clyde Foster:Centurion,South Africa]

もう少し高度が上がってからもう一度撮ろうと思っていたら、この後曇ってしまいました。
シーイングも相変わらずダメでした。

≪大阪府  枚方市  井上  修≫[Osamu Inoue. Hirakata-shi,Osaka,Japan]

ALPO-Japan Latest Mars Section	2020/04/06
	2020/04/04