LtE in CMO
#271
From Brian
@ . . . . . . . . . . Date: Sat,
Subject: Jupiter images
March 16,17,19
These
images are a week or so old, but I have only had time today to finish the
processing and annotating. 
These are probably the best 3
nights in the past 3 months, with milder weather and much better seeing. All images are taken with the Pixcel 237 CCD and the 30cm, f13 classical cassegrain running at
f33 using barlow projection. Colour webcam
images have been on hold while waiting for a proper mounting adapter to arrive
(ready for next session).
Images
show a lot of structure in the NEB & SEB in the IR band and many of the
dark spots, festoons and other features are also visible in the methane
images. The single UV images
from the 17th is probably my best to date for that band. The image from
the 19th shows the beginning of the transit of Io.
Please
let me know if there are any questions on these images. I have a few images that I am preparing that
show some of the features in higher contrast and will send them out in the next
day or so.
Take
care,
@ . . . . . . . . . .Date:
Subject: April 1 Images
I
captured a transit of the GRS on the evening of April 1 using the 30cm classical
cassegrain (f29) and
a ToUcam. Each
colour image is a composite of the best 100 frames out of 800-900 captured
during 30 seconds of video. I was
experimenting with exposures, but these images are taken at either 1/33 or 1/50
second. The camera does a nice job of
freezing the seeing. Seeing was good
(6-7/10), but very strong gusty winds caused a lot of motion during the video
capture. K3CCD tools
was used to sort and co-add the single video frames, and MaximCCD was used to process and re-combine the colour
images.
The
images show as good a detail that I could obtain in past years with the Pixcel 237 (colour data).
I will continue to use the CCD camera for IR, Methane, and UV but I
think planetary RGB will be done with the web cam from now on.
Let me
know if there are any questions regarding these images.
Take
care,
@ . . . . . . . . . .Date:
Subject: Jupiter April 18
I
captured a few video clips between
This
image was taken with the ToUcam (320x240 mode) and the 30cm Classical Cassegrain
at f 29 plus IR rejection filter. The video sequence was captured at 30 fps and
1/33 sec exposure. K3CCD
tools was used to combine the best 90 of approx 680 frames. Processing was performed with MaximCCD and annotated with PhotoShop.
Please
forward any questions or comments that you may have.
Brian
(
Maple Ridge Observatory