Solar
& Planetary LtE Now in August 2023
Not every email is
necessarily cited in the PDF’s CMO LtE
To see the preceding ones, click
The latest is at the top
¤••••• Subject: Jupiter
2023-09-01 UT
Received: 2 September
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-30 UT
Received: 31 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter J230828
ishibashi, Flash of Jovian surface
Received: 27 August
Flash
image with B-390 filter on AutoStakkert3
On
Jupiter
images on
Best
regards,
Tsutomu ISHIBASHI (
¤••••• Subject: Saturn 2023-08-26 UT
Received: 27 August
Saturn
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-26 UT
Received: 27 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-25 UT
Received: 26 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn 2023-08-24 UT
Received: 26 August
Saturn
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-24 UT
Received: 25 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-23 UT
Received: 24 August
Jupiter
images on
Best regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
images with AstroQueyras 620 mm Cassegrain, August 12th 2023
Received: 23 August
Hi all,
This follows
the Saturn images from the same night. The excellent seeing kept on until
sunrise.
Very
fine details are recorded in IR in the northern hemisphere, as well as some
structure inside BA.
About
BA, its reddish inner ring, currently very faint in visible light, is clearly
detected as a dark feature in UV. Only UV can do that!
Regards,
Christophe
Christophe PELLIER (
Planetary astronomy and imaging
¤••••• Subject: Jupiter 2023-08-22 UT
Received: 23 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn, 22nd
August IR600
Received: 23 August
Hi all,
here's an image of Saturn from last night using a 600nm longpass filter under
reasonably steady seeing with strong jetstream.
Tethys
and its shadow can be seen in transit across the southern hemisphere.
13
recordings spanning 42 minutes were used to make this image.
best regards
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230822-121106
Anthony Wesley (
¤••••• Subject: Saturn 2023-08-20 UT
Received: 21 August
Saturn
images on 20 August 2023.
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn, 19th
August IR750
Received: 20 August
Hi all,
here's an image of Saturn from last night using a 750nm longpass filter.
Seeing
was poor so no fine details can be seen. I combined 11 x 90s recordings over
the space of 50 minutes.
Dione
(left) and Tethys (right) can be seen. I've increased the brightness of the
moons to make them more visible. WJ has done a good job of correcting them.
cheers, Anthony
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230819-122154
Anthony
Wesley (
¤••••• Subject: Jupiter
2023-08-18 UT
Received: 19 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn, 16th
August IR750
Received: 17 August
Hi all,
here's an image of Saturn from last night in poor/variable seeing.
Only
750nm longpass was usable. No exceptional features are visible on the disk or
in the rings.
All the best
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230816-121500
Anthony Wesley (
¤••••• Subject: Saturn
images taken with the T620 of AstroQueyras observatory,
with spokes on the rings, 11 and 12 August 2023
Received: 16 August
Hi all,
I'm back
from my 2023 mission at the AstroQueyras observatory, and we have benefited
from two good nights, one being incredible. Here is a selection of the best
images taken from both nights. I have been observing at the T620 (F/15
Cassegrain) instead of the T500.
Anthony
Wesley observed a spoke on ring B recently, and some have been caught as well
here, with Ic and CH4 filters !
Many
subtle details can be see on the animations. The
animation technique is very powerful for Saturn, since the smallest details are
often hard to confirm on a still image... Note some bright CH4 spots on the EZ, I didn't think it was possible to observe activity on
that band...
The
camera is used at prime focus without any barlow.
Added to the altitude of the site which almost reaches 3000 meters, it makes UV
imaging more easy. I am using now a quite
"extreme" UV filter along with the usual Johnson U, the U340 from
Asahi Spectra. I detect an evolution of the albedo of the planet with the 340
filter, where the EZ is darker, and the rest of the globe slightly brighter
(this can be see on the HST images between the F395N and the F343M)
I will
have more data on Jupiter.
Best
wishes,
Christophe
Christophe PELLIER (
Planetary astronomy and imaging
¤••••• Subject: Jupiter
2023-08-14 UT
Received: 15 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Venus
2023-08-04 UT
Received: 12 August
Venus
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-10 UT
Received: 12 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn,
August 10 RGB
Received: 11 August
Hi all,
here's a colour image of Saturn from last night.
Seeing
was steady but with a lot of jetstream blurring. 40 minutes of data was
derotated in Winjupos.
best regards
Anthony
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230810-154124
Anthony Wesley (
¤••••• Subject: Jupiter
2023-08-07 UT
Received: 10 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-06 UT
Received: 10 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn, 9th August
R channel
Received:10 August
Hi all,
here's an image of Saturn from last night through an Astrodon R filter.
I was
trying to catch Mimas in transit however the seeing was just not good enough to
see it.
I
recorded and derotated 37 minutes of data to get this result.
cheers, Anthony
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230809-141924
Anthony Wesley (QLD,
AUSTRALIA)
¤••••• Subject: Saturn
2023-08-04 UT
Received:6 August
Saturn
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Jupiter
2023-08-05 UT
Received: 6 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn and
Tethys, IR750
Received:
Hi all,
here's an image of Saturn from last night through a 750nm longpass filter
showing a transit of Tethys. Tethys can be seen at lower right but its shadow
is cast below and right of the moon and is on the limb, resulting in some
artifacting when WJ derotates it.
The 55
degree south storm can be seen down near the south pole.
I had to start early to catch both of these in the same image, Saturn was still
quite low and the seeing was not great.
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230805-130230
best regards
Anthony Wesley (
¤••••• Subject: Mars: July
30, 2023
Received:
Hi,
I have attached my latest image of
Mars
Maybe this would be my last image of the 2022 apparition...
https://www.kwasan.kyoto-u.ac.jp/~cmo/cmons/2022/230730/FMl30July23.png
Best,
Frank J MELILLO (
¤••••• Subject: Jupiter
2023-08-04 UT
Received: 5 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn, 4th
August RGB
Received: 5 August
Hi all,
here's an image of Saturn from last night in good seeing.
Not a
lot of action can be seen on the planet in this image however there is a large
horizontal structure evident in the southern hemisphere at mid latitudes.
3 x 13
images were derotated to make this result spanning 54 minutes.
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230804-142554
best regards
Anthony Wesley (
¤••••• Subject: Jupiter
2023-08-03 UT
Received: 4 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn, 3rd
August RGB +Tethys transit + Spoke
Received: 4 August
Hi all,
some good seeing for a couple of hours last night allowed me to capture a colour
image of Saturn. By a stroke of luck Tethys was in transit during this period
and also a prominent spoke in the B ring came into view near the end of the
session. See attached image and animation.
best regards
Links:
RGB
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230803-150130
2-Frame animation of spoke in B ring
http://www.acquerra.au/astro/gallery/saturn/20230803-150130/2023-08-03-1501_5-AW-RGB-AI-A.gif
Anthony Wesley (
¤••••• Subject: Jupiter 230803 ishibashi
Received: 4 August
Jupiter
images on
Best
regards,
Tsutomu ISHIBASHI (
¤••••• Subject: Jupiter
2023-08-01 UT
Received: 2 August
Jupiter
images on
Best
regards,
Tomio AKUTSU (
¤••••• Subject: Saturn, July
31 IR750
Received:
Hi all,
some reasonable seeing this morning on Saturn.
I
recorded 22 images covering 1500utc to 1600utc through a 750nm longpass filter
and combined them in Winjupos to get the attached result.
The
bright storm at 55 degrees South can be seen and is shown enhanced in the
inset.
Link:
http://www.acquerra.au/astro/gallery/saturn/index.live?dir=/saturn&image=20230731-153712
best regards
Anthony Wesley (