火星 ALPO-Japan Latest
Mars Image 2018/06/15(UT)
井上 修
Clyde Foster,Bruce Macdonald,Christopher Go,Michael Rosolina,Damian Peach
C.Foster,B.Macdonald,Christopher Go,O.Inoue,M.Rosolina,D.Peach
解説（安達）/ Comment by Makoto Adachi
総観測数は少ないが、Amazonisをのぞくほぼ全周の様子を見ることができた。Clyde Foster氏の画像は細部まで非常によく出ている。
Tharsisの成層火山やOlympus Monsが赤黒く記録されている。まだ、この部分はダストストームの影響は少ないらしい。ＳＰＣを見ると、
Mare Sirenumの南側は、淡いダストストームが横切っており、ＳＰＣの周囲を流れている、急に乗って広がった様子が見えている。
6月10日にSolis Lacusにできたダストストームは、拡散したが、その痕跡が見事に残っている。どの波長にも形がはっきり出ているが、
どちらかと言えば白雲が混じっていると環が多ほうがよさそうだ。
Damian Peach氏の画像ではMare Cimmeriumの上にダストの雲が2つ発生しいる。移動してきたというよりもこの地域で発生した
もののようだ。
Although the total number of observations was small, I could see the appearance of almost the whole lap, except Amazonis.
Mr. Clyde Foster's image is very well presented to details. The stratovolcano of Tharsis and Olympus Mons are recorded in red and black.
It seems that the influence of dust storm is small in this part yet. Looking at SPC, the south side of Mare Sirenum is crossing the light dust storm, flowing around the SPC, you can see a sudden ride and spread.
The dust storm made on Solis Lacus on 10th June spread, but its traces are splendidly left. The shape is clearly visible in any wavelength,
but if it says rather white clouds are mixed, the ring seems more likely to be more.
In the image of Mr. Damian Peach there are two dust clouds on Mare Cimmerium. It seems to have occurred in this area rather
than moving.
（by ６ observations ;reported by Makoto Adachi)
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At last some improved seeing conditions early this morning.
I am still monitoring the western edge of the main storm cloud.
- Tharsis remains reasonably clear,with the Tharsis volcanoes and the western extremity of Vallis Marineris still clearly visible.
Olympus Mons is the reddish spot at lower right.
- Eastern Vallis Marineris remains bright with dust.
- The left limb remains blanketed in the main dust cloud.
- Dust is seen extending onto the SPC
- I suspect that dust that has travelled around the planet from the other side of the storm is now seen at upper right
- A sharp,linear cloud(CO2/ice?) extends from the northern limb at bottom.
- Solis Lacus is also reasonably clear,but has dust activity changing on a daily basis,with a serpentine dust cloud visible today.
Having been consistently monitoring the western front of the dust storm over the last few days at CM’s of +-85/86,
I got up earlier last night to try and have my first look at the main dust cloud,which extends across the left half of my attached image set.
Unfortunately seeing conditions were again very poor.Dust laden Vallis Marineris extends across the centre of the image.
What is maybe a bit promising from an amateur imaging perspective is that Tharsis and Solis Lacus appear
to continue to hold off any major westward movement of the main dust cloud.
What is also promising is that there appears to be some subtle dark features appearing through the main dust cloud in the Erythraeum,
Nilokeras and Niliacus Lacus regions,I am wondering if the cloud may already be thinning out?
Interesting times!
Note: I deliberately did not adjust/edit colour as,with the poor conditions,
I am not sure what is real or not. In particular the blue cloud adjacent to the SPC at upper right.
[Clyde Foster:Centurion,South Africa]
(Bruce Macdonald : Punta Gorda,Florida USA)
Seeing was a bit unstable today.
It is 3 weeks before Mars Opposition and the dust storm is still raging!
The dust storm has engulfed most major features on Mars.
Sinus Sabeaus/Sinus Meridiani should have been prominent at the CM!
The familiar Syrtis Major should have been setting on the right.
Right now the planet is mostly blank!
[Christopher Go : Cebu Philippines]
≪大阪府 枚方市 井上 修≫[Osamu Inoue. Hirakata-shi,Osaka,Japan]
The sketch is a combination of the view in red and integrated light.
Feature were faint without filters.
[Michael Rosolina : Friars Hill,WV USA]
Here is an image from June 15th. Average seeing. Significant dust obscuration,
and Mare Tyrrhenum is absent due to dust. Also the SPC is significant obscured.
Overall contrast of the albedo markings that are seen is notably reduced.
[Damian Peach: Loudwater,Buckinghamshire,United Kingdom]
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