Solar & Planetary LtE Now for CMO/ISMO #65 (CMO #439)
Not every email is necessarily cited in the PDF’s CMO LtE
The latest is at the top
¤••••Subject:
Mars
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
screen…… However, a few of the major features were detectable after processing.
Best regards,
¤••••Subject:
RE: CMO #438 uploaded
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
¤••••Subject:
solar images
Hi Guys the star of the show on
the 17th was this enormous Prominence. The also-ran’s 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
¤••••Subject:
Announced Today: Enceladus Has a Global Ocean
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 : http://t.co/6NbrhG5g0C
And here find today's press
release: http://www.ciclops.org/view.php?id=8199
Enjoy!
Carolyn PORCO
(Boulder, CO)
Cassini Imaging Team leader
Director, CICLOPS, Space Science Institute, Boulder,
CO
Visiting Scholar, UC Berkeley, CA
¤••••Subject:
solar images 6-11-12-Sept-2015
Hi Guys September’s 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 “swan” of spots.
The Ha image show some
flaring too.
Best wishes
Dave TYLER (Bucks, the UK)
¤••••Subject:
Uranus and satellites 2015.09.09
Dears,
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) :
http://www.astrosurf.com/delcroix/images/uranus_20150909_ir685_MDe.jpg
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 ... :
http://www.astrosurf.com/delcroix/images/planches/u20150909i-02h16.9UT-MDe.jpg
http://www.astrosurf.com/delcroix/images/planches/u20150909r-01h53.0UT-MDe.jpg
Regards,
Marc DELCROIX
(Tournefeuille, FRANCE)
¤••••Subject:
Neptune & Triton 2015.09.09
Dears,
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:
http://www.astrosurf.com/delcroix/images/planches/n20150909i-00h51.3UT-MDe.jpg
Steady skies,
Marc DELCROIX
(Tournefeuille, FRANCE)
¤••••Subject:
Neptune with bright spot on 8 September 2015
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,
John SUSSENBACH (Houten,
The NETHERLANDS)
¤••••Subject:
Re: Neptune with bright spot on 1 September 2015
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°...
Christophe
--------------------------------
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.
>Ricardo.
--------------------------------
Christophe PELLIER (Nantes,
FRANCE)
Planetary astronomy
and imaging
¤••••Subject:
Neptune with bright spot on 1 September 2015
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.
John
SUSSENBACH (Houten, The NETHERLANDS)
¤••••Subject:
Neptune image 3rd September 2015
Hi all,
Here is a new image of Neptune. Variable conditions made all other attempts to
fail, but seeing was nice during this one.
http://www.astrosurf.com/pellier/N2015-09-03_00-01_IR_AQ
Best wishes,
Christophe PELLIER (Nantes,
FRANCE)
Planetary astronomy
and imaging
¤••••Subject:
Re: Neptune on September 1st 2015
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
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
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.
http://www.astrosurf.com/pellier/N2015-09-01_22-28_IR_AQ
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 :
http://www.astrosurf.com/pellier/vallee_aq_nuit
Best wishes,
Christophe PELLIER (Nantes,
FRANCE)
Planetary astronomy
and imaging
¤••••Subject:
Solar images 27-28-August-2015
Hi Guys here are a few more
images of AR2043 just before it exited stage right. Let’s 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
ZWO ASI120 MM-S
Best wishes
Dave TYLER (Bucks, the UK)
¤••••Subject:
Neptune with spot A2 2015 aug. 31th
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.
http://www.astrosurf.com/pellier/N2015-08-31_23-07_IR_AQ
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
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
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
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 “August 9”. Though I could not respond promptly, I
appreciated with pleasure what you wrote.
I
hear nowadays 40% of the citizens in
(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
I
hope I could be free from the senile dementia for a while.
With
best wishes,
Masatsugu
----------------------------------------------
Bill SHEEHAN (