火星 ALPO-Japan Latest
Mars Image 2020/11/19(UT)
柚木健吉,井上 修,石橋力,荒川 毅,安達 誠,熊森照明,山崎明宏,阿久津富夫
Antonio Cidadao,Jorge Rallo,Chris Nuttall,Eric Sussenbach,Fattinnanzi Cristian,Manolo Rodriguez,Christopher Go,Joaquin Camarena,Kevin Quin,Clyde Foster,Stanislas Maksymowicz,Charles Galdies,Paul G. Abel,Vicent Gonzalez Cebria,Mike Hood,Damian Peach
K.Yunoki,O.Inoue,T.Ishibashi,T.Arakawa,M.Adachi,A.Cidadao,Jorge.R,C.Nuttall,E.Sussenbach,C.Fattinnanzi,M.Rodriguez,Christopher Go,J.Camarena,K.Quin,C.Foster,S.Maksymowicz,T.Kumamori,A.Yamazaki,C.Galdies,P.Abel,V.Gonzalez,M.Hood,T.Akutsu,D.Peach
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
この時期にしては、大変暖かい一日で観測史上最高の気温とのこと。
雲が広がっていた。切れ目もあるため撮像したが、このR画像のみ。
シーイングは極めて悪く、普段なら撮像しないが、ダストストームの火星の表面の記録として写した。
[Kenkichi Yunoki (Sakai City,Japan)]
≪大阪府 堺市 柚木健吉≫
雲が多く、時折見える明るさの変化する火星を、Ｇａｉｎと露光時間を調整しながらの撮影となり、フィルター撮影は諦めました。
≪大阪府 枚方市 井上 修≫[Osamu Inoue. Hirakata-shi,Osaka,Japan]
気流が悪くカラーのみでやめました。ARGYRE付近に黄雲は広がっているようです。昨日よりも、左上に、南極冠近くの方につきだしているように見えます。
(Tutomu-Ishibashi Kanagawa-P Japan)
≪神奈川県 相模原市 石橋力≫
雲がやや薄くなったところで、何とか１セット撮影できました。G フイルターを通して見るモニタ上の火星は、円盤というより、むしろドーナツ状に見えました。
≪奈良県奈良市 荒川 毅≫[Tsuyoshi Arakawa:Nara Japan]
透明度が悪く、最後は曇った。 ダストストームはき強烈に広がった。
--------------------------------------------------------------
≪滋賀県 大津市 安達 誠≫[Makoto Adachi:Siga Japan]
Obtained under poor conditions (only IR 1000).
≪アントニオ シダダオ ポルトガル≫
[Antonio Cidadao Oeiras - Portugal]
[Jorge Rallo : Madrid,Spain]
Clear skies tonight and a usable image initially,but again the seeing became slowly worse the longer I observed,
until eventually it was impossible to even focus the disc properly.
The dust lane from last night appeared similar but with some more detail tonight.〓 〓
The lane appeared to be of about the same width as Mare Sirenum is,with a gentle curving shape to the South-West.〓〓
It began with a bright yellow oval on the limb at Northern Argyre,and continued over Solis Lacus,
a brighter streak evident on its western edge over Claritas.
It tapered as it crossed the disc,fading out just as it neared Vorticis,which I felt was muted and hard to see clearly.
There was some evidence of the dark band around Solis Lacus showing through the dust lane at Coraeis Portus.
To the North of the dust lane on the limb I could see Nectar,Agathadaemon and Aurorae Sinus,
but all were a confused blur most of the time.〓
I could not see Solis Lacus.
Further North the Evening limb was again bright with dust over Xanthe.
Morning〓white-grey cloud was visible in the Northern hemisphere only,and I felt it extended quite some way onto the disc.
The NPH was also visible but it appeared less bright than a few days ago to me.
Overall I felt that the contrast of the Maria was a bit muted tonight.
[Chris Nuttall : York,UK]
[Eric Sussenbach : [ Willemstad,Curacao (Dutch Caribbean)]
Immagine simile a quella di ieri,ma ripresa con un orario che ha favorito la visibilit〓 della zona interessata dalla tempesta.
Al mio occhio sembra pi〓 estesa ma meno densa.
Image similar to yesterday's,but resumed with a time that has favored the visibility of the area affected by the storm.
To my eye it seems larger but less dense.
[Fattinnanzi Cristian : Montecassiano ITALY]
Average conditions of seeing 2.5/5 estimate,good transparency
The evolution of the storm continues. Without much variation,the dust clouds appear to have moved westward on their diagonal front.
From this position you can already see Marineris covered
[Manolo Rodriguez : El Pedroso,Seville,Spain]
Condition was perfect today.
The dust storm is still growing. Note the bright at Aram which is just west of Sinus Meridiani.
Valles Marineris is still very distinct. Mare Eryrthaeum is filled with dust.
There is even dust all the way to Sinus Sabeaus. The shape of this dust storm changes on the daily basis!
[Christopher Go : Cebu Philippines]
[Joaquin Camarena:Spain]
Seeing 4/10 Trans 6/10
[Kevin Quin:Vienna,VA,USA]
It was a bit of struggle with the conditions(some Jetstream,cloud and general seeing)
last night and the forecast is not looking good for the next week.
Showing the western extension of the dust storm. There is a concentrated cloud over the centre of Solis Lacus.
Olympus Mons can be seen at lower right.
[Clyde Foster:Centurion,South Africa]
Here is a mars report performed last 19th with the 90mm refractor.
Images were good but on the session limited by strong sky clouds coverage.
5minuts were available only.
The dust veils were there on the solis lacus area and aonius sinus,occulted.
I found different veil densities towards the limb as shown.
The present event compared to the 17th event observation is on extension.
[Stanislas Maksymowicz Ecquevilly,France]
雲の隙間から辛うじて撮影できましたが、シーイングも悪くディテールは写りませんでした。
≪大阪府堺市 熊森照明≫[Teruaki Kumamori:Ohsaka Japan]
長波長側はIR742しか撮影していないので、RGB合成はやめました。モノクロのままアップします。
《東京都町田市、山崎明宏》[A.Yamazaki: Machida Tokyo Japan]
The local weather conditions on the evening of November 19 were far from optimal,
with a strong breeze and almost overcast conditions throughout the evening.
Nevertheless,some decent imagery was captured showing a fair amount of Martian detail.
The fine dust cloud can also be traced on my images on the upper left side of the RGB-IR(L)
image situated over Solis Lacus and extending over part of Aonius Sinus and northwards.
The outline of Solis Lacus is quite faint,but not completely obscured by the dust.
My results show that the dust event is quite extensive but not very dense.
The origin of this dust cloud started all the way from Mare Erythraeum on the other side of Mars on November 12.
[ Charles Galdies :Naxxar-Malta]
Attached is a drawing of Mars I made on the 19th November. I've also plotted the dust storm as I observed it on my recent chart.
There is of course extensive dust in the Mariner Valley,in Erythraeum and in the Argyre basin,
however I have yet to observe those regions so for now I have not included these sections on the chart,just my own observations on the 19th.
On the 19th November,seeing was a little jittery at times,
however for most of the session it was around AIII and I used a power of x300 thorough out,points of interest include:
・SPC still visible and bright even though it is very small.
・Bright dust streak still presebt in Thurmasia Foelix,it also apepars to extend down into Phoenix and possibly Daedalia.
・A small brighter nucleus seemed to be present on/near the Dia region. The dust can be clearly seen on the prec.
limb obscuring Erythraeum and Chryse which is on the evening terminator.
・Interestingly the eastern end of Sirenum now seems to be fainter with hints of yellowish dust present.
I also suspected dust deposits in Phaethontis and in Thyle I.
・Interesting darker markings in Ulysses which I have not observed before.
・NPH doesn't seem to be as bright tonight?
[Paul G. Abel:Leicester:United Kingdom]
Seeing conditions varying from poor to mediocre,Pick. 3/10 good transparency,
some high clouds appearing at session end. Seasonal clouds over Solis Lacus
[Vicent Gonzalez Cebria:46600 Alzira(Valencia) Spain]
Hesperia Planum is feature in this image and Gale
[Mike Hood : Kathleen Georgia,U.S.A.]
≪茨城県 : 阿久津富夫≫
Poor seeing. Elysium on region is on view.
[Damian Peach: Loudwater,Buckinghamshire,United Kingdom]
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