火星 ALPO-Japan Latest

Mars Image 2020/03/17(UT)

Vincenzo della Vecchia,Mark Lonsdale,Milika-Nicholas
V.della Vecchia,M.Lonsdale,Milika-Nicholas

解説(安達)/ Comment by Makoto Adachi
 今シーズン3回目のダストストームを確認した。ヘラス(Hellas;275~315W,-30~60)の南で、SPCのエッジに位置している。形状から見て
エッジダストストームのように見える。最初の記録はMilika-Nicholas氏の観測で、SPCから北に噴出した、白雲が記録されている。この
白く噴き出した白雲のすぐ西隣には黄色く明るい模様が見えるが、これはダストストームではない。2月26日・27日・3月4日にも黄色く
明るい模様が記録されている。おそらく(Hellas;275~315W,-30~60)のエッジにできている砂漠の一部だろう。
 この時期、ヘラスは暗く見える。その位置に発生したため、ダストストームの形状がよくわかった。ダストストームは南極冠にかかって
おり、エッジから外に向かってできたように見える。この位置は、2月26日に見られたダストストーム(SPCの一部を隠しているもの)と
同じ位置での再発だろう。

I confirmed the third dust storm this season. It is located at the edge of SPC, south of Hellas (275-315W, -30-60). It looks like 
an edge dust storm in shape. The first record was observed by Milika-Nicholas, which recorded a white cloud erupting north from 
the SPC. Immediately to the west of this white cloudy white cloud, a bright yellow pattern can be seen, but this is not a dust storm. 
Yellow and bright patterns were recorded on February 26, 27 and March 4. Probably part of the desert on the edge of the Hellas
( 275 ~ 315W, -30 ~ 60).
During this time, Hellas looks dark. Since it occurred at that position, the shape of the dust storm was well understood. The dust storm 
spans the SPC and appears to have formed outward from the edge. This location is likely to be a reoccurrence in the same location 
as the dust storm (which hides part of the SPC) seen on February 26.

(by 3 observations; reported by Makoto Adachi)
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Vincenzo della Vecchia
In fair seeing conditions. No marked detail is transiting at CM,
visibile Sinus Erithraeum at setting and South Polar Cap.

[Vincenzo della Vecchia : [Aversa,Italy]

Mark Lonsdale

[Mark Lonsdale : [Canberra,Australia]

Milika-Nicholas
In reasonable seeing conditions: quite good detail was obtained in the 5.9 arc-second disk 
where Syrtis Major is prominent & the South Polar regions well defined, 
plus what appears as if it "might" be possible dust activity in the Hellas region...

[Milika-Nicholas:Adelaide,South Australia]

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2020/03/18
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