火星 ALPO-Japan Latest
Mars Image 2016/05/05(UT)
三品利郎
Clyde Foster,Anthony Wesley,Paul G. Abel,Efrain Morales Rivera,Silvia Kowollik
Clyde,T.Mishina,Anthony.W,P.Abel,E.Morales,K.Silvia
解説（安達）
前日のMilika-Nicholas氏の画像は明け方であったが、今回のClyde Foster氏
の画像は逆の日没前の画像となった。この辺りは白雲に覆われやすい地域だが、両方
とも白雲が顕著に現れている。とりわけ今回はSyrtis Majorを南北に横切る雲が興味
深い。Hellasは東側が雲に覆われているが、西側は地肌が見えている。
三品利郎氏の画像は火星の周囲に広がる雲の明るさや色合いが非常によく再現
されていて、肉眼での印象に近い。Anthony Wesley氏の画像には今日もHellasの
南に雪雲と思われる白帯が記録されている。Efrain Morales Rivera氏の画像は
Mare Boreum付近の雲の変化が面白い。
The image of Mr. Milika-Nicholas of the day before was observation
of the early morning. An image of Mr. Clyde Foster is an image before
the reverse sunset. This neighborhood is the area that is easy to be
covered by white cloud,but white cloud appears with both
conspicuously. A cloud crossing Syrtis Major this time to the north
and south is interesting among other things. In Hellas,the east side
is covered by a cloud,but the west sees the skin.
Brightness and the hue of the cloud opening around Mars are very good,
and the image of Mr. Mishina is reproduced,and vanity by the naked
eye is near. A white band thought to be the snow cloud is recorded to
an image of Mr. Anthony Wesley today to the south of Hellas. As for
the image of Mr. Efrain Morales Rivera,the change of the cloud of the
neighborhood of Mare Boreum is interesting.
（by ５ observations ;reported by Makoto Adachi)
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under average seeing conditions. Two features I note:
a) A hook shaped cloud over Syrtis Major. Would this be cloud on the flanks of Nili Patera?
b) The cloud in the Iaxartes region,near the NPC,which was visible in my image of 2 May,has developed into a very bright feature with a northerly extension,and what appears to have a small spot towards its centre(more easily seen in the red image).
Apologies for the over exposed red image.
[Clyde Foster:Centurion,South Africa]
|
Toshirou.Mishina (200mm Newtonian) |
昼間は快晴で風も弱く穏やかなので、夜も良いシーイングに期待したのですが、夕方
から雲（高層雲）に覆われてしまい、がっかりしました。火星と土星は見えるがアンタレスが見えないような透明度の非常に悪い状態なので、
シャッター速度を1/20秒まで遅くして撮影しました。
ところが、これくらいの雲を通すと、眼視で見る火星が眩しくありません。ということは、空が澄んでいるとき、火星を見るにはND4フィルタ
を使う（或いはND2とND8と三つ使い分ける）と眩しくないことがわかりました。
≪神奈川県 横浜市 三品利郎≫[Toshirou.Mishina:Kanagawa Japan]
|
Anthony Wesley (406mm Newton) |
reasonable seeing. Syrtis Major can be seen rising at left with some cloud cover extending across the disk and some isolated clouds in the north. The north pole is getting harder to see at the top of this image while Elysium is the very bright feature at centre. A lot of cloud can be seen to the south (bottom).
[Anthony Wesley,Murrumbateman Australia]
≪アンソニ オーストラリア≫
|
Paul G. Abel(203mm reflector) |
Please find attached my second observation of Mars in the current apparition. Alas due to the planet's low altitude seeing was rather poor- around AIV for much of the time. However the planet has a large diameter of about 17",and compared to the last few apparitions the apparent size is quite striking!
Even in the poor conditions a number of features were evident on the disk:
- Sorts Major was a dark,prominent object,although the Hellas basin was difficult to see with any confidence.
- Sinus Sabeus also present although I couldn't make out the Sinus Meridian.
- Boreosyrtis present in the north
- There seemed to be bright clouds along the following,northern and preceding limb,these were brightest around the north polar region,however the seeing conditions made it hard to determine where the clouds were located and brightest with any real accuracy.
[Paul G. Abel:Leicester:United Kingdom]
|
Efrain Morales Rivera(300mm SC) |
[Efrain Morales Rivera Aguadilla:Puerto Rico]
|
Silvia Kowollik (150mm Macsutov-Cassegrain) |
Equippment was a 150/1800 Mak (Skywatcher), 2-x Barlow Lens and
ALCCD5L-IIc. 15000 Images captured in 300 seconds, (mid of video
is 02:14:25 UT) with Firecapture, 55% used with Autostakkert2,
including 1,5x Drizzel, Image processing with Giotto 2.21.
Seeing was unstable with 4/10, Transparency 4/10.
CM = 0,85 °W
[Silvia Kowollik Ludwigsburg,Germany]
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