火星 ALPO-Japan Latest
Mars Image 2007/09/16(UT)
齋藤 強,風本明
Ralf Vandebergh,Stanislas Maksmowicz,Jan Adelaar,Damian Peach,Fattinnanzi Cristian,David Arditti
R.Vandebergh,T.Saitou,A.Kazemoto,S.Maksmowicz,J.Adelaar,D.Peach,C.Fattinnanzi,D.Arditti
解説（安達）
風本氏の観測では、かすかにSPCが見えている。火星像全体のコントラストは少し
ずつよくなってきているようだ。北極フードはかなり大きく広がっている様子が
観測されている。Damina Peachは注目される画像を得ている。北極フードの中に
暗部を記録している。これは、フードが極の周囲で淡くなっていることを示して
いる。今まで、フード全体が白くなっている記録がほとんどだったが、これは新
しい知見だ。北極冠生成のヒントとなるだろう。(reported by 8 observers)
In observation of Kazemoto, SPC looks faint. It seems that the contrast of the
whole Mars image is becoming little by little good. Signs that the North
Poleｒ hood spreads out quite greatly are observed. Damina Peach has
obtained the image which attracts attention. The dark part is recorded
into the North Poler hood. This shows that hood is light around a pole.
Although the record to which the whole hood is white was most, this of
old observation is new knowledge. It will become a hint of the North
Poler Cap generation. (reported by 8 observers)
FROM Makoto Adachi
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|
Ralf Vandebergh(250mm Newton) |
05:16 UT CM=136)
IR 670-1000nm shots
10in Newton/ATK-1HS-11/f/24)
___________________
S:1.0><(poor and through morning-
cumulus cl)
[バンディバ:オランダ]
[Ralf Vandebergh:Neighbourhood of Maastricht Netherlands]
|
Tsuyoshi Saitou(200mm catadioptric) |
SONY HDR-HC1
(Tsuyoshi Saitou : Agatsuma-gun Gumma-Prefecture Japan)
≪齋藤 強:群馬県 吾妻郡≫
|
Akira Kazemoto(308mm Newton) |
≪京都府久世郡 風本明≫
|
Stanislas Maksmowicz (200mm reflector) |
Dear Christophe,dear Minami san,dear Richard,to all,
Here is the last document done this morning 16th 00H25UT,seeing conditions were average to good,but disturbed by clouds at the end. Performed before dew deposition.
This concerns the features from CM 65°-70°.
Some comments are given in the attached files.
Remain yours and will respond to your kind comments if any.
[Stanislas Maksmowicz Ecquevilly,France]
can't complain much about the circumstances,nice to see the Tharsis volcanoes
[ジャン-アデラー:オランダ]
[Jan Adelaar:Arnhem City Netherlands]
|
Damian Peach (350mm Celestron SCT) |
Here are some images from Sep 16th in very good seeing at times. Olympus Mons looks remarkable,and i saw it visually on this morning. Ascraeus,Pavonis and Arsia Mons are also very prominent. Interesting changes to Mare Sirenum from 2005. The NPH shows some nice structure,and on none of my sessions this week did i detect any clouds over the Tharsis volcanoes.
[Damian Peach: Loudwater,Buckinghamshire,United Kingdom]
|
Fattinnanzi Cristian (250mm Newtonian) |
[Fattinnanzi Cristian : Macerata ITALY]
|
David Arditti (355mm C14) |
This set of images demonstrates the slight difference between results using an
(IR)(SG)B technique and the proper "true" colour RGB technique.
The top line contains two IR and synthesised green images, separated by 12 minutes.
The bottom line is the RGB result from an intermediate time. All images share
the same blue component.
There is actually little difference in the sharpness of results of the two
methods but the yellow-green spectrum is not correctly rendered in the synth. G
images.
The Olympus and Tharsis volanoes stand out, plus another spot in the Araxes
area, near the CM to the S, which is not a volcano.
Damian commented on this date that he had not imaged any clouds over the
volcanoes in recent weeks. Neither have I.
[David Arditti: Edgware Middlesex HA8 5LW: United Kingdom]
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