火星 ALPO-Japan Latest
Mars Image 2021/04/05(UT)
安達 誠,伊藤了史
Stanislas Maksymowicz,Chris Nuttall
M.Adachi,S.Ito,S.Maksymowicz,C.Nuttall
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解説(安達)/ Comment by Makoto Adachi
Argyre付近が気になっていたので、無理に観測したが、条件が悪く何も得られなかった。
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≪滋賀県 大津市 安達 誠≫[Makoto Adachi:Siga Japan]
流れる雲の晴れ間を待っての撮影で気流は不安定でした。
≪愛知県 春日井市 伊藤了史≫[Satoshi Ito. Kasugai City,Aichi,Japan]
Here is a mars report performed with the 235mm cassegrain under average poor images.
Brightenings are plotted〓on the planet disk against main features.
A difficult observation with regards to the sky conditions.
[Stanislas Maksymowicz Ecquevilly,France]
The seeing was OK but Mars is now extremely small, so making out the major albedo features is challenging.
I am now having to start my observing sessions in twilight but the W21 orange filter is a good help against the blue sky.
Not possible to resolve the NPC, but the limb is certainly white,
and greyish mist can be seen extending up the morning terminator and the evening limb in the north.
The equator appears bright but this could just be in contrast with the〓darker maria to the north and south.
Some mist in the〓south too, but not a real hood.
[Chris Nuttall : York,UK]