火星 ALPO-Japan Latest
Mars Image 2020/07/02(UT)
Dmitry W. von Aichegg,Clyde Foster,Willian Souza,Mark Lonsdale,Gary Walker
Dmitry.W,C.Foster,W.Souza,M.Lonsdale,G.Walker
解説（安達）/ Comment by Makoto Adachi
ダストストーム本体の観測はないが、Clyde Foster氏は西に広がりつつあるダストストームの先端を見事に記録した。西に延びる棒状の
帯が先端である。その北側には、鎖のような模様が見えるが、これは何かわからない。にオリンピア山（Olympus Mons;135W,+25）は赤黒く
よく目立っている。頂の部分は高地なので、青画像では晴れた黒い点状に記録されている。
Mark Lonsdale氏は4日間の画像を並べ、見やすく整理された。ただし、シーイングの影響を大きく受けており、細部の変化は比較できない。
Gary Walker氏の画像では、火星像の右上にダストストームのような見え方の模様が見えるが、これは、今シーズンの地表の様子で、
ダストストームではない。
Although the dust storm itself has not been observed, Mr. Clyde Foster has successfully recorded the top of the Dust storm
spreading to the west. The bar-shaped strip extending to the west is the top. A chain-like pattern can be seen on the north side, but
I don't know what this is. The Olympus Mons (135W,+25) is very red and black. Since the top is high, it is recorded as clear black dots
in the blue image.
Mr. Mark Lonsdale arranged the images for 4 days and arranged them for easy viewing. However, it is greatly affected by seeing,
and changes in details cannot be compared. In Mr. Gary Walker's image, a dust storm-like pattern can be seen in the upper right corner
of the Martian image, but this is the surface of the season, not a dust storm.
（by 5 observations; reported by Makoto Adachi)
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[Dmitry W. von Aichegg : Domodedovo,Moscow Russia]
My apologies in advance for the over processing of the RGB and somewhere along the line I lost the plot with the colour balance.
If I have the opportunity to redo,I will.
That aside,there is some crazy stuff happening out on Mars,which I felt warranted sharing quickly.
I believe I was able to capture the western regions of the recent dust activity and note the following:
a) Olympus Mons is the dark,reddish spot at lower right.
b) The "anomaly" SW of Olympus Mons,that I have been noting recently,is very evident.
c) There is an amazing cluster of what looks like dust cloud "pillows" extending across the broad region immediately south of (above) Olympus Mons.
d) It’s not conclusive,but to my eye,it looks to me that there is dust extending across the southern albedo regions.
e) There may be a patch of dust extending onto the SPC
[Clyde Foster:Centurion,South Africa]
[Willian Souza : Sao Paulo,Brazil]
Mars is still looking pretty dusty from my vantage point in SE Australia.
I attach my latest from last night,which seems to show a light patch around Noachis Terra.
I also attach a composite showing changes in appearance over the last week,but note that the 30 June one was affected
by bad seeing and sub-optimal collimation.
The arrows show the dust plume (25 and 27 June),and the light patch (2 July).
[Mark Lonsdale : [Canberra,Australia]
Weather here in the SE USA has made imaging very challenging!
slightly resized images which have had most of the limb artifact removed. (2020/07/29)
[Gary Walker:Georgia:USA]
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