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Mars Image 2024/12/20(UT)
井上 修,佐藤康明,眞島清人,森田光治,荒川 毅
Damian Peach,Niall MacNeill,Christophe Pellier
O.Inoue,Y.Sato,K.Mashima,M.Morita,T.Arakawa,D.Peach,N.MacNeill,Christophe.P
下記リンクをクリックにて安達氏のコメント(PDFファイル）が開きます。
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
撮影途中何度か薄雲の通過に邪魔されましたが、シーイングはこの時期としては悪くなかったようです。
≪大阪府 枚方市 井上 修≫[Osamu Inoue. Hirakata-shi,Osaka,Japan]
明け方のシーイング悪かったけれど報告します。
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[Sagamihara-shi Kanagawa-prefecture Japan]
≪神奈川県相模原市 佐藤康明≫
無風に近い静かな快晴。シーイング中〜やや良。撮影終了間際、雲接近で悪化、その後雲に飲み込まれてしまいました。
[眞島清人 : Kiyoto Mashima,Naha,Okinawa,Japan]
非常に気温が低い状況であったが，シーイングは比較的安定していました。欲張って多く撮影したので報告が遅れました。
右最下段画像のみ，カラーとモノクロ画像を合成しています。好シーイングの時はこの方が好結果です。
≪滋賀県守山市 森田光治≫[Mitsuji Morita:Siga Japan]
≪奈良県奈良市 荒川 毅≫[Tsuyoshi Arakawa:Nara Japan]
Good seeing. The Elysium hemisphere on view. Syrtis Major is at far left just appearing. The large well defined North Polar Cap at top. Volcanoes Elysium Mons and Hecates Tholus are the two light spots near centre.
[Damian Peach: Loudwater,Buckinghamshire,United Kingdom]
The superb seeing on the 20th of December (UT) continued into the morning and allowed me to get some good resolution on Mars.
This is a classic face of the planet with Olympus Mons on the f side of the Central Meridian,with its diamond shaped scarp and the Tharsis Montes a bit further south. The iconic Vallis Marineris is clearly visible to the lower right near the terminator and directly south of it is Solis Lacus,the Eye of Mars. There is considerable blue-white cloud to the south on the f-side of the Meridian and in an equatorial band extending from the terminator.
I made four RGB & IR captures of 4 mins each and I thought the first three had the best of the seeing so I integrated these as well as all four. Actually both sets images (RGB & IR) are pretty good but have time stamps just 8 mins apart.
I also include one unannotated image with Mars in its Equatorial orientation and somewhat zoomed out.
Also for fun I superimposed the RGB images and the WinJUPOS graphic morphing between the two,with annotations showing the major features visible.
17-47-54_RGB_unannotated_equatorial_nmacneill
[Niall MacNeill : Wattle Flat,NSW,Australia]
A bit late but here is a set from december 19th taken under fair seeing.
A dust front is active over the polar cap (this looks to be a quite frequent activity currently), giving the so-called "Rima Tenuis effect".
Although there is none there, a few terminator or beyond terminator clouds have been imaged over the past weeks, so please check your data and do not mask the terminator during processing :)
[Christophe Pellier Bruz City,France]
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