Solar & Planetary LtE Now for CMO/ISMO #65 (CMO #439)

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¤••••Subject: Mars 27 September 2015

Received: 27 September 2015 at 15:24 JST


Hi, all

An early start this morning with my first capture of Mars for the new apparition. The planet, at 3.9", was lower than 19 deg in elevation and conditions were very poor. The avi's, quite frankly, were a "blobby" mess, with absolutely no detail being visible on the screencc However, a few of the major features were detectable after processing.

Best regards, Clyde

Clyde FOSTER (Centurion, SOUTH AFRICA)



¤••••Subject: RE: CMO #438 uploaded

Received: 26 September 2015 at 15:31 JST


Dear Masami and Masatsugu (and Reiichi!)

I hope that you are all keeping well. Thank you for this latest edition of the CMO. It is a very interesting article by Bill Sheenan on the Pluto flyby. I would like to particularly thank Masatsugu for the article on the Xanthe dust storm. As you are aware I am a fairly new Mars imager, so to get experienced commentary on some of my observations is very welcome.

I am preparing myself for the new apparition with some excitement. Since the last Mars images in April, I have been spending time on Jupiter and Saturn images to try to improve my processing techniques. I also have purchased the Baader filters (I find the IR 685nm filter to be especially good) and also two new cameras that I will be testing. I hope that the quality of my images will be better that the last apparition!

Best regards, Clyde


Clyde FOSTER (Centurion, SOUTH AFRICA)




¤••••Subject: solar images 17-Sept-2015

Received: 22 September 2015 at 04:11 JST


Hi Guys the star of the show on the 17th was this enormous Prominence. The also-ranfs were AR 2415, 2418 and 2419 . Seeing was very variable and far from good, with fleeting glimpses of convection cells . I never did a recky on Gong before this imaging session so you can imagine my surprise on switching to Ha and being faced with this monster. I have presented it in just about all ways I can think of so take your pick.


Best wishes


Dave TYLER (Bucks, the UK)

Ham call G4PIE




¤••••Subject: Announced Today: Enceladus Has a Global Ocean

Received: 16 September 2015 at 09:12 JST


September 15, 2015

Dear Friends and Colleagues,

Today, my imaging science team members and I announced the conclusion of several years' of work to find evidence of a global ocean within Saturn's moon, Enceladus.  We've known for some time that a liquid layer is present, but not how extensive it is.


Well, now we do.   [The paper in the journal Icarus reporting this news has been posted online today, but won't really be officially published for another week.]

In the meantime, you can find more information in my Facebook post giving the back story to this exciting report :

And here find today's press release:



Carolyn PORCO@ (Boulder, CO)

Cassini Imaging Team leader

Director, CICLOPS, Space Science Institute, Boulder, CO

Visiting Scholar, UC Berkeley, CA

Fellow, California Academy of Sciences




¤••••Subject: solar images 6-11-12-Sept-2015

Received: 14 September 2015 at 21:33 JST


Hi Guys Septemberfs Solar activity started off very quiet and cloudy. First light on the 6th revealed just a few pore groups with only the solitary spot in AR2411 showing penumbra. Some blue again on the 11th showed a dramatic change in AR2414 during the early hours. Even in white light you can see the stress building up and distorting the convection cells between the embryonic spots. These then blossomed, becoming quite the gswanh of spots.

 The Ha image show some flaring too.


Best wishes


Dave TYLER (Bucks, the UK)

Ham call G4PIE




¤••••Subject: Uranus and satellites 2015.09.09

Received: 13 September 2015 at 17:16 JST



Uranus and its 4 brightest satellites, along with two stars in the field - I really like these large fields images (this one is at acquisition size) :


Images with the detailed information, in infrared and red longpass wavelengths; there is a faint small bright spopt just below the band in the Northern hemisphere, more chances are its an artifact rather than a real detail ... :


Marc DELCROIX (Tournefeuille, FRANCE)




¤••••Subject: Neptune & Triton 2015.09.09

Received: 13 September 2015 at 16:56 JST



Neptune, without spots (A and B were on the other side of the globe anyway), but still, I think there is a beauty in such images of the last planet of the solar system:

Steady skies,


Marc DELCROIX (Tournefeuille, FRANCE)




¤••••Subject: Neptune with bright spot on 8 September 2015

Received: 11 September 2015 at 08:42 JST


Dear Ricardo,
Attached find an image of the bright spot on Neptune on 8 September 2015. The seeing was not too bad, when this image was made and was improving. As a bonus I have added a Uranus image showing an interesting banding pattern. This is my best Uranus image and was obtained probably by the good seeing at that moment. I also made a family picture of the Uranian system with 5 major satellites including faint Miranda




With kind regards,





¤••••Subject: Re: Neptune with bright spot on 1 September 2015

Received: 4 September 2015 at 21:00 JST


Thanks John,

Measurements are difficult but it looks rather coherent with my image taken half an hour later, with the spot at CM = 0 to 10...



Le 04/09/2015 09:56, Ricardo Hueso a écrit :
> Hi John,
> Very nice image. The bright feature seems to be a bit of the track of the ephemerids gathered from professional observations but seems a  very clear detection.  Thanks for continuing the observations.



Christophe PELLIER (Nantes, FRANCE)
Planetary astronomy and imaging




¤••••Subject: Neptune with bright spot on 1 September 2015

Received: 4 September 2015 at 14:24 JST


Dear Ricardo and others,

Attached find a Neptune image I captured on 1 September 2015.  Transparancy was fine. The seeing was not good, but compared to the other night there was a slight improvement.

This time I used a 742 nm long pass filter. As illustrated in the other figure we make use of the methane spectral windows of 750, 825 and 940 nm profit the best of the NIR sensitivity of the NIR sensitivity of the ASI224MC camera.

The total exposure time was 15 minutes with an average time of 21.56 UT.






¤••••Subject: Neptune image 3rd September 2015

Received: 3 September 2015 at 22:23 JST


Hi all,
Here is a new image of Neptune. Variable conditions made all other attempts to fail, but seeing was nice during this one.

Best wishes,

Christophe PELLIER (Nantes, FRANCE)
Planetary astronomy and imaging




¤••••Subject: Re: Neptune on September 1st 2015

Received: 3 September 2015 at 00:48 JST


Hi Ricardo,

Many thanks for the information !

More clear nights are coming here and so we will keep tracking those features, if seeing cooperates.

Best wishes,

Christophe PELLIER (Nantes, FRANCE)
Planetary astronomy and imaging




¤••••Subject: Re: Neptune on September 1st 2015

Received: 2 September 2015 at 22:15 JST


Hi Christophe.

Thanks for sharing this image. The bright spot in the north hemisphere is located at a longitude of about 347º, quite close to the "expected" position of the bright spot in Neptune we've been tracking over July and August. Therefore I think this is another positive detection. There was an observation by the Lick Telescope the night before that shows the feature bright and powerfull just as in mid July. The bright feature has not lost its strengths and continues to be an observable feature in Neptune for many amateurs.

Best wishes,


Ricardo HUESO




¤••••Subject: Neptune on September 1st 2015

Received: 2 September 2015 at 20:06 JST


Hi all,

Here is a new image of Neptune from last night. Some brightening is caught as usual on the south hemisphere, one being more conspicuous.

Seeing was excellent but with passing clouds and only one image could be secured. The night ambience was fantastic, very quiet and steady, with the moonlight reflecting on floating ghost clouds in the valley and around the italian Viso mount :

Best wishes,

Christophe PELLIER (Nantes, FRANCE)
Planetary astronomy and imaging




¤••••Subject: Solar images 27-28-August-2015

Received: 2 September 2015 at 05:06 JST


Hi Guys here are a few more images of AR2043 just before it exited stage right. Letfs hear a little ripple there for 2043, thank you. It was imaged in Ha and white light. A row of tree proms were captured too.


White light AP 178T @ F27 , Baader solar continuum, IR blocker and Intes Herschel wedge.

Ha Solar max 90 ds



Best wishes


Dave TYLER (Bucks, the UK)

Ham call G4PIE




¤••••Subject: Neptune with spot A2 2015 aug. 31th

Received: 1 September 2015 at 21:42 JST


 Hi all,
Here is an image of Neptune taken last night with the 620 mm cassegrain of Astroqueyras, where I'm participating to a one week mission with belgian club Olympus Mons (Giuseppe Monachino being the chief of mission). Conditions were briefly good but deteriorated later, preventing me from taking more images.


The image shows a bright spot at predicted position of long. 319 (thanks Marc !). We will have another chance to catch it on thursday evening.

best wishes


Christophe PELLIER (Nantes, FRANCE)
Planetary astronomy and imaging


¤••••Subject: Re: August 9

Received: 1 September 2015 at 06:03 JST


Dear Masatsugu,

  I am sorry to hear of your continuing health problems, and of course underst and the delay in your responding.

  My situation here has been a mixture of good and bad.  The good--it looks as  if Dale Cruikshank and I will get a go-ahead from U of Arizona Press to do a Pluto book for them.  So this should keep me quite busy the next year.  The bad news is that my job for the state of Minnesota is being phased out as of October 1; which was quite unexpected.  For sometime we have had governors whose philosophy has been Reaganesque--no new taxes, "starve the beast" of state government.  I have contracted for nine years in Willmar with various remnant programs of a state hospital that was closed and whose campus was sold off to private agriculture (poultry) interests in 2008, and these remnant programs are now--like the last bits of a melting glacier--going away as well.  There is the private healthcare sector but unfortunately that is organized (in the US) entirely around profits; so though I have some job offers now I will have to travel and also will have to work a kind of assembly-line which is not appealing. I will have to do some careful thinking about my options alas.

   Congratulations on the 30 years of CMO--that is a great record.  Do you think we could do a highlights of CMO sometime next year perhaps? 

   I will write up something about the Pluto flyby as experienced in Flagstaff, and will also do something for the January issue--perhaps noting that 2016 will both enjoy a favorable opposition of Mars (perhaps to be observed with the newly refurbished Clark; see below) and also the centennial of Percival Lowell's death?


   Kind regards, Bill


On Mon, Aug 31, 2015 at 2:38 PM, Masatsugu Minami wrote:

Dear Bill,

 I am sorry I have been silent for a while. To tell the truth, I have not been so well in health, mostly because of
decrease in physical fitness. Really I cannot walk long, nor write long. This time, concerning the CMO, I needed too much time to edit. I cannot sometimes remember some of English words (possibly due to senile dementia).


Thank you very much for your email gAugust 9h. Though I could not respond promptly, I appreciated with pleasure what you wrote.


I hear nowadays 40% of the citizens in Hiroshima and Nagasaki cannot identify the days August 6 and August 9 as what days. Every year ceremonies in Hiroshima and Nagasaki have been on TV air. This year the message of the Mayor of Nagasaki City, Tomihisa Tau?, was especially impressive. He mildly criticized in good Japanese the recent trend of the Japanese Government. Without any war for 70 years in Japan, but the Abe government shows a tendency to oligarchy. The apparently want to change Article 9 of the Japanese Constitution (which declares that the Japanese people forever renounce war as a sovereign right of the nation and the threat or use of force as means of settling international disputes).

  (Do you remember that the Mayor of Nagasaki is eventful? The former Mayor of Nagasaki, called Iccho Itoh, was shot dead in 2007, and the Mayor before Iccho Itoh was attempted to be shot in 1990. You and I were to see Iccho Itoh Mayor in 2004, but unfortunately he was away from the office and so some other met us. Three years later he was shot.)


Yes, we should like to receive a next opening essay for CMO #438 (September issue) from you. You may touch some stories at Lowell Observatory in mid-July concerning Pluto. We would be thankful to you if we could receive your article by 15 September.


You may know, but our CMO will welcome the 30th anniversary in January 2016 (first published on 25 January 1986). And hence we would like to invite you to write the first essay of the January 2016 issue. We of course welcome your other articles in October, November and December.

I hope I could be free from the senile dementia for a while.


With best wishes,




Bill SHEEHAN (Willmar, MN)

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