木星 ALPO-Japan Latest

Jupiter Image 2020/05/31(UT)
佐々木一男
Clyde Foster,Avani Soares,Cory Schmitz,Michel Jacquesson,Ecleido Sousa Azevedo,Javier Beltran Jovani,Jose Luis Pereira,Christopher Go,Fattinnanzi Cristian,Willian Souza,Vlamir da Silva Junior,Fabio Carvalho
C.Foster,A.Soares,C.Schmitz,Michel.J,E.S.Azevedo,Javier,J.Luis,Christopher Go,C.Fattinnanzi,K.Sasaki,W.Souza,V.da Silva Jr.,F.Carvalho

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Just a quick notification as I have just had what looks like a really good session on the PJ27 track.

I processed the CH4 images first and I was rather taken aback that there appears to be a significant methane bright spot that has appeared sp the GRS.
It is also visible in my images of 1h 20 mins later,but seeing was not as good and it is not as prominent(it was approaching the p limb).
But hopefully good enough to confirm that the spot is real.

I am not sure if it warrants any alert,but it may be worth checking to see if Juno will be able to see this far to the west.

I was going to go back to bed,but I am keen to see if anything is showing in the RGB and IR.

I should be able to circulate my full set of images later.



I managed a nice view of the upcoming Juno flyby track this morning before the seeing deteriorated.
As per my earlier post(CH4),there is a new(I think) bright spot sp the GRS,which is very bright in methane band.
It also shows as bright in IR>685nm,but can also be made out in the RGB,where it appears to be the centred within a subtle oval structure in the blue/grey feature in this area.
It is progressively brighter moving from B-G-R-IR-CH4,and I assume it to be an outbreak at this point. Comments always welcome.


Thanks to Agustin,Ricardo,Marc,Andy,Chris and John for the various feedback and comments so far.

As requested by Agustin,kindly find the R,G and B channel images attached.

I have not saved up quite enough dollars/Pounds/Euro’s to buy a UV filter as yet,unfortunately
But it is an investment I have seriously been considering,and I think I need to bite the bullet.
I have been looking at the Baader,but also know that Christophe Pellier has done some good investigation on alternatives recently.
Any recommendations for a cost-effective option would be welcome.

Based on the planning around PJ27 and the GRS events,
I had not intended to image this region tonight(my next window would be one rotation of Jupiter before PJ27 on Tuesday),but looking at Winjupos,
I can catch this area with Jupiter at an altitude of 32 deg this evening,so I hopefully will try and get something.

I am just hoping it develops further and that Juno can get a good view on Tuesday- that would be exciting.
And off course Glenn has the Subaru imaging runs over the next two days as well.




I managed to capture a second set of data covering the STB outbreak sp the GRS a little before midnight local time,with Jupiter still at fairly low altitude.
Seeing was very variable but the CH4 clearly shows the outbreak still active 20 hrs after my early morning image set.
It also remains at least a little bright in IR,and there is also some structure showing around the outbreak at this wavelength



I was only able to get one usable image in each channel for this pre-midnight RGB (20hrs after my early morning set),
unfortunately as the region of interest was approaching the preceding limb.
Although not ideal conditions,I have shown the channel images as well as a slightly enlarged RGB version of the outbreak region.
The outbreak is very subdued in RGB compared with the CH4 and,to a lesser extent,the IR.


[Clyde Foster:Centurion,South Africa]

NEB breaking?
Photos taken in terrible seeing conditions,even so,show an interesting occurrence in NEB that seems to be breaking.
Alert given by my colleague Antonio Martini Junior who was the first to notice the expansion of a location in NEB with possible partition!


[ Observatory Parsec,City Canoas,Brazil]

Note the small bright area lower right of the GRS that was not there yesterday.
Seeing conditions are starting to improve as the jet stream is starting to move away from my observation location in Johannesburg.
There was light smoke in the local air that caused a lot of heat currents,but in between that the seeing was promising.

[Cory Schmitz : Johannesburg,South Africa]

[Michel Jacquesson : Sevigny-Waleppe (Ardennes) France]

[Ecleido Sousa Azevedo : Areado/MG,Brasil]

[Javier Beltran Jovani:Castellon-Spain]

[Jose Luis Pereira :Sao Caetano do Sul/Sao Paulo/Brasil]

The sky was clear today but seeing was variable due to N winds.

These images show the Juno's PJ27 target area.
The NEB is very active in this region with a lot of outbreaks and complex rifting.  The SEB shows the turbulence of the GRS.
On my second run,the methane band shows the bright outburst spot on the p side of the GRS which Clyde Foster discovered yesterday.



[Christopher Go : Cebu Philippines]

[Fattinnanzi Cristian :  Montecassiano ITALY]

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

[Willian Souza : Sao Paulo,Brazil]

Oval BA is present here.
Note a bright spot following it,but on the following side,before CM. NEB is much darker and much more turbulent than SEB.
A sequence of festoons present. The shadow of moon Io is visible.
In my humble images with a C8 it's hard to distinguish Io itself from the clouds of Jupiter,but it appears bright in the IR image.



[Vlamir da Silva Junior : Sao Paulo,Brazil]

[Fabio Carvalho : Assis,Brazil]

ALPO-Japan Latest Jupiter Section	2020/06/01
	2020/05/30