火星 ALPO-Japan Latest
Mars Image 2019/01/21(UT)
柚木健吉,井上 修,石橋力,永長英夫
Stanislas Maksymowicz
K.Yunoki,O.Inoue,T.Ishibashi,S.Maksymowicz,H.Einaga
解説（安達）/ Comment by Makoto Adachi
Hellasの東側のダストストームは、Hellasの外周部と同心円状に東側に広がっている。また、東にできた濃い部分は、Hellasから
離れて、さらに東に行った。Hellasの内部は1月19日と大きく変化することはなく、19日にダストストームかもしれないと書いて
いるが、どうやらダストストームというよりも表面にできた変化だと思われる。
The dust storm on the east side of Hellas extends to the east side concentrically with the outer circumference of Hellas. Also,
the thick part that was made in the east moved away from Hellas and further east. The interior of Hellas does not change greatly
on January 19th and it says it may be a dust storm on 19th, apparently it seems to be a change made on the surface rather than
a dust storm.
（by 5 observations ;reported by Makoto Adachi)
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この後、一気にシーイングが悪化。いつものことですが。ヘラスのダストは落ち着いたのであろうか。
[Kenkichi Yunoki (Sakai City,Japan)]
≪大阪府 堺市 柚木健吉≫
≪大阪府 枚方市 井上 修≫[Osamu Inoue. Hirakata-shi,Osaka,Japan]
相変わらず、気流が悪く大きな模様しか分かりません。
1月14日と比べるとSINUS SABAEUS辺りは暗くなっているので、その辺りの黄雲は収まったと思います。
(Tutomu-Ishibashi Kanagawa-P Japan)
≪神奈川県 相模原市 石橋力≫
Here is a report of mars performed last 21st with the 235mm cassegrain under very good images,on a short period.
Be aware of the sketch orientation,sorry.
Regarging the hazzing activity:
- the Candor,Tharsis area seemed covered by an hazze; seen with the RG435 filter and brighter with the W29 filter. North area of Solis Lacus.
- the Moab area (under Sinus Meridiani): its northern part was brighter with the blue filter RG435,the southern part brighter with the red filter W29.
- the north pole area: still under a whitish hood,but Nilialcus and Nilokeras was seen by transparency still.
- Argyre was seen bright whitish without filter,not seen with the RG435 filter: not an hazze probably.
- On Dia: a small bright notch was seen with the W8/W11 filters,with no filter also,from the terminator.
- On Mare Australe: from the terminator,a whitish hazze was seen both with W8 and RG435 filters: a mist.
- On Hellespontus-Yannis Fretum,from the limb,an hazze was seen with the W29 filter,it's not a white hazze,may be dusty.
- On the whole limb: a thin ring remained bright with the RG435 filter.
What is noticeable is the activity exhibited on the 2 hemispheres near the poles,nothing noted on the northern part of the south hemisphere.
Regarging the observations,it is difficult to discriminate which kind of hazze we met.
What is more obvious are the area on concern: Candor,Dia,Hellespontus,Moab succeptible to be dusty/ strongly misty.
Under the observing conditions and the planet size this is problematic for a sure diagnostic to be settled. But very good images are needed obviously.
[Stanislas Maksymowicz Ecquevilly,France]
[Hideo Einaga Kasai-City Hyogo-Prefecture Japan]
≪兵庫県 加西 永長英夫≫
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