火星 ALPO-Japan Latest
Mars Image 2020/05/28(UT)
遠藤宏次,荒川 毅,井上 修,熊森照明,佐々木一男,安達 誠,尾崎公一
Maciel Bassani Sparrenberger,Milika-Nicholas
K.Endo,T.Arakawa,O.Inoue,T.Kumamori,K.Sasaki,M.Adachi,M.B.Sparrenberger,Milika-Nicholas,K.Ozaki
解説（安達）/ Comment by Makoto Adachi
今日もSPCの上空はダストに覆われている。遠藤氏は、その様子をとらえている。肉眼で見たイメージに近い。荒川氏の画像は
アルギレ（Argyre;30W,-50 ）付近の大気にダストが含まれている様子を記録している。毎回、接近のたびに話題になるエドム
（Edom；360W,2）だが、強調処理をすると今回も明るく記録されている。しかし、これは特別な現象ではない。熊森氏は、青画像で、
シルチス（Syrtis Major:293W,+0〜20）やヘラス(Hellas;275~315W,-30~60)に夕霧の出ている様子を記録している。
Even today,the sky above the SPC is covered with dust. Mr. Endo captures the situation. It is close to the image seen
with the naked eye. Mr. Arakawa's image records the appearance of dust in the atmosphere near Argyre (30W,-50). Edom
(360W,2),which is a hot topic every time it approaches,is brightly recorded this time as well when emphasized. But this is not
a special phenomenon. Mr. Kumamori recorded in the blue image that Syrtis Major (293W,+0~20) and Hellas (275~315W,-30~60)
were seeing the evening mist.
（by 8 observations; reported by Makoto Adachi)
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≪埼玉県越谷市 遠藤宏次≫[Koji Endo : Saitama Japan]
≪奈良県奈良市 荒川 毅≫[Tsuyoshi Arakawa:Nara Japan]
≪大阪府 枚方市 井上 修≫[Osamu Inoue. Hirakata-shi,Osaka,Japan]
良く晴れましたが、寒気が入ったのかシーイングは今イチでした。
≪大阪府堺市 熊森照明≫[Teruaki Kumamori:Ohsaka Japan]
気流は悪いのですが白い極冠が印象的でした。
[K.Sasaki:Ohsaki-City Miyagi-Prefecture Japan]
≪宮城県大崎市 佐々木一男≫
シーイングが悪く、観測に苦労した。見極めに、多くの時間を費やした。
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≪滋賀県 大津市 安達 誠≫[Makoto Adachi:Siga Japan]
|
Maciel Bassani Sparrenberger |
2020-05-28 08:20:30 UT,317mm newtonian : QHY 5LII mono
Seeing 8/10 Trans 9/10,RGB 3 minutes each at 50 FPS
LRGB composition,using R+G as luminance
[Maciel Bassani Sparrenberger; Brasilia-DF,Brazil]
Hi - here is a Mars image from May 28th: we had to utilise the colour camera (ASI224MC) due to the inordinate amount of high cloud passing through continuously during the brief imaging session - a feature of the nights in South Australia for much of the last couple of months! :(
Whilst the relatively poor resolution due to the seeing is a significant factor,the Martian "landscape" appears significantly different atm: specifically some regions of lower albedo (ie,darker regions) appear as if they might have brightened quite noticeably,although at the same time it does look like other areas display more contrast (ie,even less albedo thus darker) than they usually have over the last few apparitions...
For instance,N-W of S. Meridiani along the W. edges of Arabia in the very S. regions of Acidalia,abutting Niliacus (specifically around the Indus/Oxus region & extensions) it appears markedly different.....as noted the resolution of this image might explain this to a certain degree,but it does appear as if there have been changes (perhaps lingering from 2018?) apropos albedo variations on the Martian surface...although Mars southern tilt has increased markedly since then of course.
Looking at various maps indicates large variations in the lower albedo areas over time,possibly indicative of such variations...
[Milika-Nicholas:Adelaide,South Australia]
[Ki.Ozaki,Sobue Inazawa Aichi JAPAN]
≪愛知県稲沢市祖父江町 尾崎公一≫
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