From Brian
® . . . . . . . .Date:
Subject: Mars - 25 July
2003
Hello everyone...
I have enjoyed receiving all of the great images form everyone
this summer. Let’s keep up the good work. I was wondering if there is a site
set up to archive all of these observations, as MarsWatch
was in the previous years? I have not
seen any reference to it, and there seems to be a lot of images that by-pass
me, based on the comments that I have forwarded on other e-mails. If anyone has
a URL or any other comments, please pass it along.
I have attached an RGB and IR image taken early in the morning
of July 28th. These are an improvement
over previous attempts, but still a long way off what I would like to produce.
These were taken with the 30cm Classical Cassegrain
at f43 with a Schuler IR block for
the RGB image and a Schuler IR83 (IR passing) for the IR frame. I used Registax to composite the best 50 frames from a 30 sec
video clip (approx 450 frames each) and processed these in MaximCCD.
Additional details are noted on the image.
Please let me know if there are any questions or comments.
® . .
. . . . . .Date:
Subject: Mars 02
August
Hello everyone...
I have attached a sequence of images taken over a 1.5 hour
period on the morning of August 2nd. These images were taken with the 30cm
Schmidt-Cass. and TouCam Pro
at f34.
Initially the seeing was steady and I was able to get a
couple of good IR and colour images. As time progressed, the dew and fog became
quite heavy and the last two image sequences were taken through increasing
cirrus cloud. By the tine the final images were taken the Mars was barely
visible in the fog and cloud. The colour balance of the last RGB image suffers
as a result.
These are the best 50 frames composited
from 450 frames from a 30 second video sequence, with the camera running at
15fps and 1/25 sec exposures. I was quite happy to see the resolution in the
IR. Most video sequences were shot in 320~240 mode,
but I managed to get one hi-res sequence that worked out.
Please note that there is an image processing artifact in
each image along the right edge of the Martian globe giving the appearance of
dark arc from pole to pole.
Please let me know if there are any questions or comments.
Take care,
® . .
. . . . . .Date:
Subject: Mars Aug
5th
Hello everyone...
I grabbed a few video clips of Mars early in the morning of August
5th, using the 30cm SCT and TouCam Pro. One IR and
one RGB image is included in the attached file along with a LRGB frame using
the IR as the luminance channel. The RGB
frame is raw, but the IR has been processed with MaximCCD.
Each image is a composite of the best 50 frames from a 30 second clip which was
captured at 15 fps and a 1/25 sec. exposure.
I am quite happy with the results, especially the IR frame.
As always, questions and comments are welcome.
Brian
Maple Ridge Observatory
