木星 ALPO-Japan Latest

Jupiter Image 2009/08/20(UT)
小澤徳仁郎,瀧本郁夫,熊森照明,菅野清一,鈴木 隆,柚木健吉
Jean Jacques Poupeau,Carlos.E.Hernandez,Sergio Saltamonti,Christopher Go,Donald C Parker,Peter Edwards,Gabriel Medina,Damian Peach
J.J.Poupeau,T.Kozawa,Carlos.E,I.Takimoto,T.Kumamori,Sergio,Christopher Go,Don,P.Edwards,G.Medina,S.Kanno,T.Suzuki,K.Yunoki,D.Peach

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Ganymede and Europa are in transit.

[Jean Jacques Poupeau : Pecqueuse France]

(Kozawa Tokujiro : Hachiouji-City Tokyo Japan)
≪小澤徳仁郎:東京都八王子市≫

I made an observation of Jupiter on August 20,2009 (02:15 U.T.) using  my 9-inch F/13.5 Maksutov-Cassegrain.
I noted much detail over the  jovian disk as indicated.
I was also able to make out albedo markings  over Ganymede when the seeing steadied.

Date (U.T.): August 20,2009
Time (U.T.) 02:15
L1 077.6,L2 207.2,L3 304.7
Instrument: 9-inch (23-cm) F/13.5 Maksutov-Cassegrain
Magnification: 287x
Filters: None (IL)
Seeing (1-10): 7,Antoniadi (I-V): II
Transparency (1-6): 4

Notes:
South Polar Region (SPR): The Wesley Impact Scar (WCIS) was not  clearly visible over the northern border of the SPR.
This agrees with  the images of the WCIS obtained recently which indicate the  dissipation of the impact debris.
The region appeared dark to dusky  (3-4/10) and mottled.
South Temperate Zone (STZ): Appears shaded to bright (6-7/10),but no  other detail is visible within.
South Temperate Belt (STB): Appears dark to dusky (3-4/10) with a dark  (3/10) elongation projecting into the South
Tropical Zone (STrZ)  towards the preceding limb.
South Tropical Zone (STrZ): Appears bright (7/10) with the dark (3/10)  elongation over it's preceding half extending
from the STB.
South Equatorial Belt (SEB): Appears dark to dull (3-5/10) with it's  southern component dark to dusky (3-4/10) and
northern component dusky  to dull (4-5/10).
Equatorial Zone (EZ): Appears bright (7/10) with an irregular,dull  (5/10) band over the equator. Very bright (8/10)
and large ovals are  noted over it's northern half. Blue festoons (3/10) are noted to  project into it from the
southern border of the NEB.
North Equatorial Belt (NEB): Appears dark to dusky (3-4/10) with dark  (3/10) extended barges
(or coalesced groups of barges) noted along the  northern border and blue festoons along the southern border.
Bright to  very bright (7-8/10) rifts are noted within it.
North Tropical Zone (NTrZ): Appears bright (7/10) without any other  detail visible within it.
North Temperate Belt (NTB): Appears bisected and dusky (4/10) with an  elongated,dark (3/10) condensation extending
between the two  components (center transit timed at L2 216.2/L3 313.8). Another dark  (3/10) condensation was
visible over the northern component preceding  the larger condensation.
North Temperate Zone (NTZ): Appears bright (7/10) without any other  detail visible within it.
North Polar Region (NPR): Appears dark to dusky (3-4/10) and mottled.

A detailed section of Jupiter's preceding limb showing Ganymede  (4.44m) and Europa (5.12m) with their respective
shadows following  them. I noted albedo features over Ganymede during moments of steadier  seeing as indicated.

 
[Carlos.E. Hernandez  South Florida U.S.A ]

衝突痕も見辛くなってきた。ＳＥＢは、昨年の画像と比較すると細く見える。

[Ayauta-gun Kagawa-Prefecture Japan]
≪香川県  綾歌郡  瀧本郁夫≫

連日の薄雲があり、雲の薄いところで撮影。
もう少しスカット晴れて欲しいものです。

≪大阪府堺市 熊森照明≫

[Sergio Saltamonti,Livorno (Leghorn,Tuscany,Italy)]

Oval BA remains faded with a bright white nucleus surrounded by a dark ring.







[ Donald C Parker Coral Gables,Florida U.S.A]

[Gabriel Medina :Almeria Spain]

この日も雲と根競べをして、1時間弱の晴れ間をもらいました。
久しぶりに衝突痕を見ましたがだいぶ淡くなったように思います。
またSEBのｎ組織の一部が淡化しているようです。
（最初の画像の中央部）

≪山形県上山市  菅野清一≫

[Takashi  Suzuki  (Hachiouji-City Tokyo  Japan)]
≪東京都八王子市  鈴木  隆≫

ALPO-Japan Latest Jupiter Section	2009/08/21
	2009/08/19