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Thursday, October 2, 2008
Veil Nebula in O-III light
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This is a start of the new project.
I will shoot The Veil Nebula in two color narrowband,
where O-III is Blue and H-alpha is Red, Green will be
synthesized from Red and Blue.
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Not a very good star though, at fist night (29.09.) I was able to shot
only three 20min. frames. Thats a way too litle for O-III light.
I'll shoot more , if weather up here ever permits it,
two more hours is needed here, I think.
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In the final image O-III will be precented as Blue color.
Tokina 300 AT-X @ f2.8, is a very good lens for this target,
the field of view is perfect march for the Veil.
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Here is an image where stars are removed,
it's interesting to see how far the O-III area really goes.
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For more information about this object, please, go here:
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Imaging data:
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Camera,
QHY8
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Filters,
Baader 8,5nm O-III
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Optics,
Tokina AT-X 300mm @ f2.8
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Exposures,
3 X 1200 O-III
+ flats and bias
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Guiding,
LX200 GPS 12" + PHD-guiding and Lodestar
Monday, September 29, 2008
Butterfly Nebula in narrowband colors
G(H-a)B(O-III)+ISO.jpg)
At last I was able to shot S-II channel for this image!
Last night was stormy and since I don't have a proper observatory, wind made
imaging really difficult. About half of the frames was shot trough speeding clouds.
In this image colors are showing difference between Double ionized Sulfur (Red),
Hydrogen alpha (Green) and triple ionized Oxygen (Blue).
This palette is generally known as a Hubble palette by the palette used to processing images
from Space telescope Hubble. Compared to my previous images, more details can be seen here.
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Imaging data:
Camera, QHY8
Filters, Baader 7nm H-alpha and Baader 8,5nm O-III
Optics, Tokina AT-X 300mm @ f2.8
Camera, QHY8
Filters, Baader 7nm H-alpha and Baader 8,5nm O-III
Optics, Tokina AT-X 300mm @ f2.8
Exposures, 5 X 1200s H-alpha 3 X 1200s O-III
4 X 1200s S-II + flats and bias
-Guiding, LX200 GPS 12" + PHD-guiding and Lodestar
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Just noticed, that there is a cosmic Seagull in the image!
It just reising its wings.
Butterfly in Narrowband Stereo
G(H-a)B(O-III)+PARALLEL+VISION.jpg)
G(H-a)B(O-III)+CROSS+VISION.jpg)
For viewing istructions, please, look at the menu on the right hand side of the page.
Labels:
stereo images
Sunday, September 28, 2008
Butterfly Nebula, Colors of Autumn

I made some tests about colorbalance. I looked more closely
O-III channel and compared it to the H-alpha channel.
There was some large scale differences between those two.
This experiment is done to make those differences more visible.
Green channel is synthesized from O-III and H-alpha channels.
I think, this color scheme is very suitable for season up here.
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