July - October 2010

October 29, 2010

I'm back from my trip to the USA.   I have some guest this evening.  Singapore Planetary Imager Tan Wei Leong was with me and Tomio Akutsu.  Wei Leong is here because of a business trip.   Seeing was average this evening. 

The SEB is still faded.  The NEB is very busy.  Note the reddish oval north of the NTB between the dark barges.

October 13, 2010

It's been cloudy the past few days.  It was mostly cloudy when I started imaging but the sky cleared!!  I'm leaving for the United States tomorrow.  Will be back on the 28th of this month!

The GRS, Oval BA and the NNTZ LRS are prominent in these images.  The area around Oval BA is still very dark.  Oval BA is very red now.  GRS is very prominent with the SEB still faded.  Note the area north of the GRS.  It is very bright even in Methane Band and UV!  Note the dark small ovals moving towards BA.  The LRS can easily be seen.

The NEB is very busy.  Note the large dark feature on the NEB on the right side.  The outbreaks are getting complex.

October 8, 2010

Another frustrating night.  I was wondering why I was out imaging.  Seeing was okay but transparency was variable and very low!!

The area north of the GRS is very bright!    Note the dark spots from the STB "hitting" the GRS.  The Oval BA looks almost fully red except for a small area in the center. Note that the white ovals on the SSTB have dark edges like BA.  The SEB is still very quiet.

The NEB is very busy.  Note the multiple outbreaks and the formation of the dark festoons on the EZ. 

 

October 6, 2010

Transparency was very poor this evening and seeing was variable.

The GRS and Oval BA is now setting.  Note the northern edge of the GRS is very bright.  The SEB is very quiet and is still very zonal.  The EZ has a yellowish tinge.

The NEB is very busy.  Note the outbreaks seem to be associated to the dark projections into the EZ.  The NNTZ LRS can be seen but the contrast is low compared to the surrounding region.

 

October 4, 2010

Condition wasn't great this evening.  Transparency was very poor and seeing was terrible.

The SEB looks very quiet here.  No sign of revival yet.  The NEB is very dark with the NEBn ovals very prominent.  Note the dark blue feature on the EZ.

 

October 3, 2010

I'm back from my trip to Rome to attend the EPSC.  The trip was great and I was very happy to meet Marc Delcroix in person!

It was mostly cloudy today.  There were thunder storms in the north and south with a small clearing around Jupiter.  I only had a 30min window before the sky was overcast.  Transparency was terrible.

The GRS and Oval BA are very prominent.  Note the dark halo around BA.  The SEB is still zonal. 

The NEB is very dark and broad.  

September 20, 2010

It was mostly cloudy today.  Transparency was terrible but seeing wasokay.

The SEB is very quiet.  Note the reddish tinge on the SEB.  The NEB is still dark.  Io can be seen in the bottom image.

I'm leaving for Rome today to attend EuroPlanets.  Will be back imaging on Sept 28 if the sky is clear when I come back.

 

September 19, 2010

Sky was clear today.  Seeing was okay.

The GRS and Oval BA are very prominent.  Note that Oval BA is almost fully red except for the center.  Note the halo around the GRS.  It looks very turbulent.  The SEB is still zonal.

The NEB is very busy with a lot of outbreaks.

In the last images, Io starts it's transit on Jupiter.  Note the shadow is very close to the disk!  This will be the closest I will get this season.  I'm leaving for Rome on Sept 21 to attend the European Planetary Science Congress.

September 18, 2010

It was mostly cloudy today.  Seeing was okay but transparency was terrible.

One can tell that opposition is just a few days away with the shadow and the Europa's disk so close to each other.  Europe's ghostly reddish disk floats on the SEBs.  The SEB is very quiet and exhibits a pinkish tinge.

The NEB is stil very busy.  There are a lot of details on the northern temperate region.

 

September 16, 2010

Seeing was excellent this evening.  But I had to end my session when clouds rolled in.

Oval BA's red ring is very distinct.  While the GRS's structure can be seen.  Note the little dark spot that is moving towards the GRS.  The SEB is still very quiet and looks like an extension of the EZ.  The NEB is still very busy. 

Oh yeah, as for yesterday's image the  16bit image is the last image...

September 15, 2010

Finally some decent conditions have come my way.   I imaged early today with Jupiter only about 50+deg above the horizon.

The SEBn looks a little reddish  in these images. But overall the SEB is still

quiet.  The NEB is very busy.  Note the huge dark red spot on the NEB.  The NTB seems to be fading but there very dark bands on the NTBn is very prominent.

Of the 3 colored images on the right one was made in 16bit mode.  Can you tell which one?

September 9, 2010

Seeing and transparency was incredible this evening. I had to deal with some small clouds in between imaging sessions.

The GRS is setting in this image.  The SEB is still very quiet.   The dark ovals lining up on the STB is very is still present.  Note the small bright spots on the SEBs.

The NEB is very busy with a lot of dark and red spots along with complex rift outbreaks.  The merged NEB oval can be seen in the last image.

 

September 6, 2010

Seeing and transparency was great!  That is until about 20min after I started imaging when clouds suddenly rolled in!

The GRS and Oval BA are well resolved.   The SEB looks very complex.  The NEB is very dark with complex rifts.    Note the dark red barge at the STBn.

September 4, 2010

I had a scary night.  It was mostly clear when I started imaging.  Seeing was okay a the start but went downhill as clouds starting getting closer.  Haft an hour after I started, I felt rain showers even though there were not clouds.  I was in panic as I shut down all my electronics and covered my system.

The GRS and Oval BA are still close to each other.  The SEB is still very quiet.  Not sign of revival!  The NEB looks very buys.  Io is peeking out of Jupiter as it emerges from behind Jupiter.

 

September 3, 2010

It was hazy today.  Seeing was good but transparency was poor.

The SEB is still very quiet.  Io is transiting the SEB.  Io is well resolved.  The NEB is still dark with white and dark spots.

September 1, 2010

It was mostly cloudy today.  Seeing was okay but transparency was horrible!  I had to image Jupiter through clouds.  This resulted in a lower frame rate.

The GRS and Oval BA can be seeing very close to each other.  Oval BA is very dark red now. 

The SEB is quiet and very light.  The NEB is still very dark and busy.

 

August 29, 2010

The past weeks have been very cloudy here.  It finally cleared today but I overslept.  I did not wake up till Jupiter was way past the meridian!  Seeing was not great but it was not bad either.

The GRS and Oval BA can be seen in this image.  The dark moon Callisto can also be seen with some features resolved.

Oval BA has passed the GRS.  The SEB is still very quiet.  The NEB is filled with white and dark ovals.

 

August 14, 2010

Seeing was excellent this morning although it was partially cloudy.

The SEB is very quiet.  Note the bright spots lining up at the SEBs.   Note the dark spots lining up on the STB.

The NEB is very busy.  Note the tiny bright spot which is probably a start of an outbreak.  The area south of this outbreak is a complex festoon interacting with the NEBs.  The large white spot on the NNTZ is bright in methane band.  There are a lot of interesting features on the North Temperate region.

 

 

 

August 13, 2010

It been almost a month since my last image.  Weather had been horrible here.  Nothing but rain rain rain!  Thankfully it clear morning enough to image the GRS and BA.

The GRS and Oval BA are close to conjunction.  It is interesting to note that Oval BA is very bright in methane band.   The red annulus has thickened.  Note a hint of structure inside the GRS.  The GRS had a dark ring in the blue end of the spectrum. 

The SEB is still faded but it is very dark on  Methane band.  The NEB is still very busy.  The NNTZ LRS can be seen rising.  It is most prominent in the methane band image.

 

July 17, 2010

It was mostly clear when I started imaging.  But after my last image, clouds started to roll in.

The GRS and Oval BA are prominent in these images.  Note the bright diagonal feature on the northern part of teh GRS.  This area is also bright in Methane band.   It is also interesting to note that under the blue filter the edge of the GRS is dark.

Oval BA's ring has also become very dark.  Even on red filter, there is a hint of this dark ring.  This is surprising as earlier this year, the ring wasn't visible even with the green filter.

The GRS and Oval BA are getting closer and closer now.  They should have a conjunction in the coming months.

The SEB is still faded while the NEB is still very dark and active.  You made a wmd video for the images I took this morning.

July 16, 2010

After days of clouds, finally a clearing.  I was only able to scrap one set of image because clouds rolled in after I took this image.  Seeing was excellent!

The STB is slowly reviving.   The SEB is still very quiet.  The NEB is busy with a complex rift system.   Note the dark red barge north of the NTB.  

 

July 8, 2010

I had been out for a few weeks because I had to rest my legs.  Seeing wasn't great this morning.   It was also partially cloudy.

Ganymede can be seen transiting the STB.  It is very close to Oval BA.  Oval BA has become very dark.   The STB seems to be reviving.

The SEB is still faded.  The NEB is still very dark.  The  three red ovals (GRS, BA and the NNTZ LRS) are bright in Methane band. 

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Copyright 2010 Christopher Go (chris@cstoneind.com)