火星 ALPO-Japan Latest

Mars Image 2020/09/30(UT)
大田 聡,佐々木一男,阿久津弘明,高尾幸弘
Giancarlo Rizzato,Damian Peach,Javier Beltran Jovani,Efrain Morales Rivera,Thomas E. Williamson,Silvia Kowollik,Christopher Go,Sonka Adrian,Dmitry W. von Aichegg,Siegfried Gonzi,Antonio.D'Alonzo,Jacques VAN DER MEER,Raimondo Sedrani,Michael Barbieri,Daniele Papa,Giusti Gianni,Emanuele De Giorgio,Torsten Hansen,Johan Warell,Strikis Iakovos,Marinoni Vittorio
G.Rizzato,D.Peach,S.Ota,Javier,K.Sasaki,E.Morales,T.Williamson,K.Silvia,Christopher Go,S.Adrian,Dmitry.W,H.Akutsu,Y.Takao,S.Gonzi,A.D'Alonzo,J.VAN DER MEER,R.Sedrani,M.Barbieri,D.Papa,G.Giusti,E.Giorgio,T.Hansen,J.Warell,S.Iakovos,M.Vittorio

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解説（安達）/ Comment by Makoto Adachi

 
[Giancarlo Rizzato : Marano Vicentino (Vicenza) ITALY]

A spell of near perfect seeing last night allowed for some truly splendid views of Mars - the best ive had in some years.
I made a visual drawing of the view displaying the classic central Syrtis Major/Hellas view so famous in drawings of past visual observers such as Antoniadi.


Excellent seeing. Lots of fine details visible across the planet. Various delicate clouds visible in the B filter image.

Firstly my thanks to Ian Sharp and Anthony Wesley for their comment and discussion.
The original version of this image showed artifacts in places that i suspected were not real details,
and on comparison with some of my own previous work during August and images by others it confirmed there was an issue.
I suspect the problems here were a result of a few factors. Here are some details on changes i made:
1. Smaller align boxes in AS3 on the contrasted albedo areas mixed with larger align boxes overall.
2. A more careful alignment of the WJ alignment frame using the new 11.2.3 version.
I was quite surprised to see after a few attempts at slightly different angles this can affect small scale details.
I am begining to see how important it is to get this spot on - using the moons may be the only real solution as Anthony has mentioned.
3. I removed a few R and G images that were not as sharp as the best data during the capture period.
Overall its been an interesting afternoon working on this data experimenting and finally managed to produce a result i'm happy with.


[Damian Peach: Loudwater,Buckinghamshire,United Kingdom]

[Tomigusuku city Okinawa Japan]
≪沖縄県  豊見城市  大田 聡≫

[Javier Beltran Jovani:Castellon-Spain]

まだ高度が十分上がる前の撮像です、この後雲に覆われました。

[K.Sasaki:Ohsaki-City Miyagi-Prefecture Japan]
≪宮城県大崎市  佐々木一男≫

[Efrain Morales Rivera  Aguadilla:Puerto Rico]

[ Thomas E. Williamson Albuquerque,New Mexico,USA ]

Best seeing this night since start of observations in August.

[Silvia Kowollik  Ludwigsburg,Germany]

Seeing was average tonight but transparency was poor.
Here is an image of Mars showing Olympus Mons.
Also in view are the three giant Tharsis volcanoes but these are covered with clouds.
Mare Sirenum is prominent. Solis Lacus is setting on the lower right.

[Christopher Go : Cebu Philippines]

[Sonka Adrian Bruno:Bucharest,Romania]

 
[Dmitry W. von Aichegg : Domodedovo,Moscow Russia]

曇っていたのでゆっくり画像処理をし終わった時点で外を見たら、何と快晴。
慌てて観測の準備。撮影を始めたら、雲が。薄雲の中で撮影。

≪北海道旭川市  阿久津弘明≫[Hiroaki Akutsu:Hokkaido Japan]

<<北海道札幌市  高尾幸弘>>[Yukihiro Takao.Sapporo-city,Hokkaido,Japan]

[Siegfried Gonzi : Exeter,United Kingdom]

From visual observing some haze apparent on the western and northern limb,not visible in the image.
Filters used=Baader R longpass and Baader Ir-UV cut

[Antonio.D'Alonzo : Altino,CH,Italy]

The pictures where taken with an embarrassing high frequency turbulence due to an approaching weather front.
Nevertheless,the clear conditions allowed to reveal Mars・blue hue,west of Hellas (notably the image of 23h12).


[Jacques VAN DER MEER: La Ciotat (13) France]

[Raimondo Sedrani : Pordenone,Italy]

[Michael Barbieri : Villafranca di Verona,Italy]

[Daniele Papa : Agropoli(SA),Italy]

[Giusti Gianni:Casalguidi Pistoia Italy]

Dpbson 20" f4.5 barlow 3X,extension,Qhy 178 MM,Baader RGB filters,Seeing 8/10,original frame 0,056 arcsec/pixel,resize 120%



[Emanuele De Giorgio ; Rome,Italy]

A delicate view over probably the most attractive marsian terrain - Syrtis Major.
The craters Huygens,Schroeter,Herschel and Gale can be identified,easily.

[Torsten Hansen:Boos Germany]

[Johan Warell:Lindby:Sweden]

[Strikis Iakovos : Athens,Greece]

[Marinoni Vittorio : Legnano(Mi),Italy]

ALPO-Japan Latest Mars Section	2020/10/01
	2020/09/29