Friday, February 29, 2008
Litle test, jus for fun
This is a sample about 3D-transform.
In the left side image the great galaxy of Andromeda is seen as normally.
On the right side image the same galaxy is twisted,
so that you are able to see it as seen from above.
Original image was not very high quality, but even tough, more
general structure can be seen in this manner.
It looks like the spiral structure is more visible in the right hand image.
I'll like to try this to some high resolution, nearly on edge galaxy, later.
I did this tarnsform under PhotoShop this time. by
using simple tretch.
Better results can be archived with real 3D-software, where I can project the image
to a real 3D-surface and rotate it to an any angle i like.´I'll try that later.
Thursday, February 28, 2008
The Great Globular Cluster in Hercules, M13
M13 image is from 27.02., same night as previous IC 405 & IC 405 image.
Picture is scaled down about 50%
This one was hard to process doe massive light pollution defects,
gradient, LP noise and weak S/N ratio.
Imaging telescope:
LX200 gps 12" @ f6.3
Guiding:
SXV-AO @ 10Hz
Cameras:
QHY8 for imaging
Lodestar for guiding
Filter:
IDAS LP
Exposures:
9 X 900s = 2h 15min.
UPDATE
I did a new version.
This time I skipped two frames doe the bad quality.
Now there is 7x900s.
I also used CCDStack positive Constrain deconvolution,33 iterations.
Images are updated.
Wednesday, February 27, 2008
IC 405 & IC410
Flaming Star nebula and its companion forms a beautiful pair.
Image is quite deep doe the fast 200mm f2.8 lens and three hours of exposures,
there is lots of nebulosity visible around main objects.
I'll shoot color for this later.
This is a emission nebula but in the Flaming Star part there should be
som bluish reflection nebulosity as well, lets see if I'm able to pick it up.
I had a lot of technical problems last night. There is a heater strip in the camera assembly to prevent dewing. In some state I managed to destroy the power plug.
I can tell, it's not a nice job to do soldering at snow with freezing wind and darkness.
After that I dropped some essential parts in the deep snow and did spend an hour to looking for them.
Image info:
Canon FD 200mm f2.8 lens coupled with QHY8 6mb cooled color camera.
7nm H-alpha filter
Exposures 9 x 1200s = 3 hours
Guiding and platform LX200 GPS 12" with QHY5 guider.
Processing in CCDStack and PS.
Monday, February 25, 2008
NGC 2683 "Sanp shot"
This is a dim galaxy in constellation Lynx.
I managed to capture less than two hours of data before
the clouds rolled in.
There is some details visible in the core.
LX200 GPS 12" and QHY8
Guided with SXV-AO and LodeStar camera
IDAS LP filter
10 x 660s + Flats and Bias frames
IRIS Drizzle function was used to bring out some details.
(Light pollution more or les destroy this image.)
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