火星 ALPO-Japan Latest
Mars Image 2020/11/20(UT)
荒川 毅
Stanislas Maksymowicz,Christopher Go,Anthony Wesley,Niall MacNeill,Jorge Rallo,Javier Fuertes,Johan Warell,Christophe Pellier
S.Maksymowicz,Christopher Go,Anthony.W,N.MacNeill,T.Arakawa,Jorge.R,J.Fuertes,J.Warell,Christophe.P
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Click the link below to open the Comment（PDF File） by Makoto Adachi on a new page.
解説（安達）/ Comment by Makoto Adachi
Here is a mars report performed with the 76mm refractor and the 154mm cassegrain〓under average images.
The planet mars goes through cloud holes and looks yellowish to the naked eye.
At the eyepiece,the ground color appeared yellowish also mainly,except on the dusty veil looking ochre color.
All the features from the central meridian towards the limb appeared dramatically changed and contrasts lowered.
I didn't see Solis Lacus.
Will see the expansion of the present dusty event on the globe for the next few days,if weather allows.
[Stanislas Maksymowicz Ecquevilly,France]
Seeing was perfect today but I had to deal with some clouds.
A bright dust storm system is now right next to Sinus Sabeaus!
Dust is not over Sinus Meridiani and there is even a system that bisects Sinus Sabeaus!
The entire Mare Erythraeum is covered with dust and moving even close to the south pole! Will this go global?
[Christopher Go : Cebu Philippines]
Sseeing last night wasn't great,however I could see an interesting feature on the rising terminator
so I processed the data to get the attached image. There seems to be some high altitude dust (?)
that's visible in the pre-dawn sky at lower left,I've also included a stretched version of the image to make this more visible.
It was clearly visible in all filters,from UV425 to IR750 longpass.
Elsewhere in the image we see the dust activity becoming more widespread.
[Anthony Wesley,Murrumbateman Australia]
≪アンソニ オーストラリア≫
[Niall MacNeill : Wattle Flat,NSW,Australia]
雨雲が全天を覆っていたので撮影を諦めかけていたのですが、火星が西にかなり傾いた頃に晴れ間に恵まれました。
ただし、酷いシーイングで時おり吹く突風にフレームアウトを繰り返しながらの撮影で、詳細までは写りませんでした。
それでもダストの大まかな流れは判りました。継続的に見ていないと、どこを見ているのか判り難い様相になっています。
≪奈良県奈良市 荒川 毅≫[Tsuyoshi Arakawa:Nara Japan]
[Jorge Rallo : Madrid,Spain]
280mm Smith Cassgrein : ASI290M,Seeing 7/10 Trans 9/10
[Javier Fuertes Leon,Spain]
The November images show the regional dust storm on the evening limb.
Hoping to get better views in the near future with this region closer to the meridian.
[Johan Warell:Lindby:Sweden]
A following of 3 hours of the planet under fair seeing with nothing especial to see.
[Christophe Pellier Bruz City,France]
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