木星 ALPO-Japan Latest

Jupiter Image 2015/02/26(UT)

Christopher Go,Jose Antonio Soldevilla,Martin Gutmann,Joaquin Camarena,Tiziano Olivetti,Paul G. Abel,Martin R Lewis,Matic Smrekar,Damian Peach
Christopher Go,A.Soldevilla,M.Gutmann,J.Camarena,T.Olivetti,P.Abel,Martin.L,M.Smrekar,D.Peach

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Another frustrating evening.  The sky was sometimes partially cloudy but clouds overcast.  
This is the reason why there is an hour duration between the two images.  
Seeing was sometime excellent but transparency was very variable.

The GRS is prominent in this image. The core is well resolved.  
Note the reddish extension on the west side of the GRS.  This extension is bright in Methane band!  
The halo of the GRS has a yellowish color.  The SEB outbreak is now pushing into the GRS.

The NEB is quiet in this region.  Jupiter's dark moon Callisto can be seen on the NEBs.  
Callisto is very bright in Methane band.



[Christopher Go : Cebu Philippines]

Very bad seeing,but very nice moment!

[Jose Antonio Soldevilla  Canyelles-Barcelona-Spain]

[Martin Gutmann:Kautzen Austria]

Continue with bad seeing in Spain. In this opposition of Jupiter we have not had a night with good conditions and forecasts of meteorology are bad. Patience

[Joaquin Camarena:Spain]

atatched 2 rgb under poor seeing conditions,showing Callisto and it's shadow.


［ティジャノ:オリベッティ　バンコック　タイ］
[Tiziano Olivetti : Bangkok Thailand]

Please find attached an observation of Jupiter made on the 26th February.  
Also that evening Io partially occulted Europa and I made a series of drawings showing the encounter.  
Io looked somewhat light orange-yellow in colour,Europa was white.   Other things of interest on the disk:

-SSTB and STB seen,three white ovals present in the STB which could be made out in good to average seeing.
-STropZ white,a small dark brownish section,irregular in shape present near the GRS.  A faint STropB also present fol. the GRS
-GRS small and orange in colour,some variation in intensity was observed inside the spot.
-SEB broad,SEB(n) dark.  The region just fol the GRS did not appear as turbulent as usual.
-EZ contained only a few festoons,all rather weak visually
-NEB much browner than the SEB,the northern edge contained some darker irregular parts.
NTB rather vague at these longitudes,a small dark barge was present,and further along,some darker,grey irregular sections.
-NNTB much better defined and dark grey in colour.


[Paul G. Abel:Leicester:United Kingdom]

Jupiter from a moderate evening last Thursday with my one-shot colour camera. 
Still waiting for that elusive evening of good seeing in 2015.

[Martin R Lewis: Hertfordshire United Kingdom]

[Matic Smrekar: Ljubljana,Slovenija (Europe)]

The first of a long series of Jupiter images taken over the past two weeks. Wading through the 1.5TB of raw data is pretty heavy going!

Good seeing this session. Some interesting structure visible around the GRS periphery as well as inside the spot itself.





Inspired by a suggestion from Dr. Brian May, I decided to go back to the GRS data on Feb 26th 
and re-process both sets to form a high resolution stereo pair (something he has been involved in during recent times.) Anyhow, 
I processed the data much more lightly to maintain a natural soft appearance to the planet.

The two images are separated by roughly five minutes in real time make them ideal for this task.

I also measured the size of the GRS at 15,500km in width.


The GRS was observed right the way across the disk, but ive not yet checked if its rotation was detected in that time.




Here is a movie covering 1h50m of Jupiter from February 26th in an attempt to detect the anticyclonic rotation of the GRS.

I was fortunate to have very good conditions to observe the passage of the GRS across the disk. 
The images which are all R filtered clearly detect the rotational motion of the storm across even this short time period. 
Other motions are visible in the atmosphere such as the movement of material on the SEBn jet.

This may be the first time the GRS rotational motion has been detected across such a short time period from a ground based telescope.


[Damian Peach: Loudwater,Buckinghamshire,United Kingdom]

ALPO-Japan Latest Jupiter Section	2015/02/27
	2015/02/25