From Christophe PELLIER
® . . . . . . . .Date: Sat, 13 Sept 2003 16:12:17 +0200
Subject:
Saturn on september 13 2003
Hi all
The night has been cloudy for Mars but
the sky cleared at 04 H 30 and Saturn was well placed to be observed. There is
again a white spot, near the CM, what do you think ? I
see one possible spot, rotating with the planet on the three images (barely
visible on the red image).
Best wishes
® . . . . . . . Date: Mon,
15 Sept 2003 00:16:12 +0200
Subject:
Mars, september 13 2003
Hi everyone
Finally the good seeing returned to my
location last night. However some images have been misfocused,
sorry !
http://astrosurf.com/pellier/2003-09-13-CPI
Regards
® . . . . . . . Date: Mon,
15 Sept 2003 00:18:03 +0200
Subject:
Saturn on september 14 2003
Hello observers. The observing
conditions were excellent for these. No spot suspected here...
Regards
® . . . . . . . Date: Tue,
16 Sept 2003 22:20:43 +0200
Subject:
Mars, september 15 2003
Hi all. The conditions were good last
night, and this time the images have been correctly focused :-)) I have managed to get some
blue images through a W47 filter (deep blue) with IR-blocking. Although the
filter is very difficult to use, it gave more contrast to the white clouds of
the planet, with a better green-cutoff than the B Astronomik
it seems. There are clouds now up to the martian
noon on these. The link is
http://astrosurf.com/pellier/2003-09-15-CPI
Regards
® . . . . . . . Date: Wed,
17 Sept 2003 02:06:47 +0200
Subject:
Re: [marsobservers] Mars, september 15 2003
Well said Clay. And, as the planet will
go away, it will also rapidly increase its altitude for the observers in the
northern hemisphere, so the observing period is really not over at all. In
2001-2002 some imagers have taken very good images even 6-8 months after opposition !
----- Original Message -----
From: "P. Clay Sherrod"
<drclay@arksky.org>
Sent: Wednesday, September 17, 2003
12:05 AM
Subject: Re: [marsobservers]
Mars, september 15 2003
> Nice images Christophe...
> Our seeing conditions here have
deteriorate horribly and the planetary image
> is such that focus is nearly
impossible. Hopefully others will
continue to
> monitor,
but I am seeing a dramatic drop in the number of contributed
> observations
and images just since last week. There
are still at least
> three
excellent weeks available for imaging and detailed observations and we
> need to get the word out worldwide
that our observers should continue as
> long as
possible.
>
> Clay
® . . . . . . . Date: Wed,
17 Sept 2003 20:55:17 +0200
Subject:
Mars, september 16 2003
Hi all : good seeing with a light haze
last night, which led me to make an AVI of 4 minutes for the W47 image... There
is a strange white protrusion at the edge of the north polar hood. Am I wrong
or the white clouds are more numerous than last month ?
http://astrosurf.com/pellier/2003-09-16-CPI
Best wishes
® . . . . . . . Date: Wed,
17 Sept 2003 22:14:28 +0200
Subject:
Saturn on september 17 2003
Hi everyone,
I have observed Saturn this morning
under beautiful conditions. These images show the critical CM III = 200, and on
the first four images, again maybe a very weak white patch is observed near the
central meridian, but this is getting hard to detect, so it would be good to
see some images taken with a bigger instrument. I can't conclude with these
images.
Best regards
® . . . . . . . Date: Thu,
18 Sept 2003 13:11:29 +0200
Subject:
Re: 20030917 Saturn
Hi Eric : very
impressive image, and the belt structure is indeed nicely shot. Hopefully you
will catch the spot...
Best wishes
----- Original Message -----
From: "Eric Ng"
<ericng@cuhk.edu.hk>
Sent: Thursday, September 18, 2003 7:30
AM
Subject: 20030917 Saturn
> Dear friends,
>
> Attached was the saturn images taken in this
morning. Saturn was around 50
> degree
from horizon but the atmospheric dispersion is enough to blur some
> details
on the ring (especially for Encke minima and Encke division).
> However, the belt structure on the
globe is very beautifully shown. Wish you
> all like
it.
>
> http://www.ort.cuhk.edu.hk/ericng/saturn_200309172050_eric.jpg
>
> Regards,
>
> Eric
® . . . . . . . Date: Thu,
18 Sept 2003 13:04:58 +0200
Subject:
Re: Saturn on september 17
2003 - spot still present.
Hi Damian, very good idea that you had
to composite some of the final images... It looks much more convincing now :)
Thank you
----- Original Message -----
From: "Damian Peach"
<dpeach_78@yahoo.co.uk>
Sent: Wednesday, September 17, 2003
11:23 PM
Subject: Saturn on september 17 2003 - spot still present.
Hi Christophe,
Thanks for the excellent Saturn images.
Please see the attached image. I composited two of
your images that are sufficiently close in time to avoid smearing caused by
rotation. The improved S/N and strong sharpen brings out the low contrast
details of the cloud belts. As you can see, the small spot
remains, and moves with the rotation of the Planet.
As was noted last apparition, these
spots are very low contrast features, and require excellent seeing to be
captured clearly.
Here is the data i
took from the images:
04:04.6 UT CM3=206.1 -40.4
04:08.8 UT CM3=202.8 -40.0
If anything, the spot at this very preliminary
stage shows a slightly
retrograding drift, but its to early to provide accurate drifts of the
feature.
Keep up the excellent work!.
Best Wishes,
Damian
® . . . . . . . Date: Fri,
19 Sept 2003 00:35:47 +0200
Subject:
Mars, september 17 2003
Hi observers :
here is my latest set of images taken under very good conditions.
http://astrosurf.com/pellier/2003-09-17-CPI
Best wishes,
® . . . . . . . Date:
Sun, 21 Sept 2003 19:10:00 +0200
Subject:
Mars, september 19 and September 20
2003
Hi everyone
Here my too last sets of images before
the rain. Good or fairly good conditions. There are very nice clouds in Tharsis !
http://astrosurf.com/pellier/2003-09-19-CPI
http://astrosurf.com/pellier/2003-09-20-CPI
Best wishes,
® . . . . . . . Date: Wed,
24 Sept 2003 19:30:21 +0200
Subject:
Mars, september 23 2003
Hi all, some Mars images taken under
fair seeing but excellent transparency. I have been amazed by how much the
turbulence was reduced when using an IRcut with the
RG610 red filter instead of using the IR part as usual. I'm convinced that the use of somewhat narrow filters do have a positive influence
on the seeing...
http://astrosurf.com/pellier/2003-09-23-CPI
Regards
Christophe PELLIER (Bruz,
