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Stereograph Of Nebula
dilo
post Dec 17 2005, 08:28 PM
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QUOTE (Harry @ Dec 17 2005, 02:07 PM)
...mmm, surely the lower part is seen in more perspective. What have you done? Have any sharpening been applied to the lower part?

No, only horizontal shift with trivial cut/paste photoretouch pgm wink.gif
Europa is interesting, but not very realistic (surface structures aren't on a sphere...)


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Harry
post Dec 18 2005, 11:53 AM
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QUOTE (dilo @ Dec 17 2005, 08:28 PM)
No, only horizontal shift with trivial cut/paste photoretouch pgm  wink.gif
Europa is interesting, but not very realistic (surface structures aren't on a sphere...)
*

I admit the stereograph for Europa is not "realistic" since the distance between the probe and Europa is too great to recognize the features of Europa in perspective. Even the Himalayas would not be seen in perspective at all from Space Shuttle flying over it.

The attached stereograph is for the Pwyll impact crater on Europa (view: parallel eyes). The original image was taken by Galileo orbiter. As the reference, I also attached the topographical image of Pwyll made by NASA.
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Harry
post Dec 20 2005, 02:16 PM
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The following images are the Pwyll and its contour made by Contourer. The white regions have the lowest altitude. Black regions indicate the deviation from focal point. According to NASA, the highest point in the crater is about 600 m. Based on that altitude, the altitude of a point on the rim of crater was estimated by using Contourer.
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Harry
post Jan 2 2006, 11:16 AM
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Happy new year! smile.gif

The following image is the stereograph of Enceladus (view: crossed eyes) synthesized by Stereographer. The original image was taken by Voyager 2.
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malgar
post Jan 2 2006, 12:55 PM
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QUOTE (Harry @ Dec 18 2005, 01:53 PM)
As the reference, I also attached the topographical image of Pwyll made by NASA.
*


Hi Harry. I attach my topographical stereo image (crossed view) of Pwyll. Unfortunately that channel is an artifact. It is caused by albedo differences. The algorithm works only with costant albedo.
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Harry
post Jan 3 2006, 01:57 PM
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QUOTE (malgar @ Jan 2 2006, 12:55 PM)
Hi Harry. I attach my topographical stereo image (crossed view) of Pwyll. Unfortunately that channel is an artifact. It is caused by albedo differences. The algorithm works only with costant albedo.
*

Then you have converted the difference of brightness (or hue) to that of altitude independently from the measurement by radar? That's very amazing! ohmy.gif I can see your stereograph in perspective much better than mine (although some details seem to be rounded.)

The following image is the stereograph of volcano and aurora (view: parallel eyes). The original image was taken by S. H. Stefnisson.
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Harry
post Jan 7 2006, 11:47 PM
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The following image is the stereograph of aurora (view: parallel eyes). The original image was taken by S. H. Stefnisson.
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Harry
post Jan 7 2006, 11:50 PM
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The following image is the stereograph of aurora (view: parallel eyes). The original image was taken by S. H. Stefnisson.
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Harry
post Jan 16 2006, 01:17 PM
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The following image is the stereograph of Sombrero Galaxy (view: parallel eyes) synthesized by Stereographer. The original image was taken by HST.
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Harry
post Jan 17 2006, 09:10 AM
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The following image is the stereograph of Boomerang Nebula (view: parallel eyes) synthesized by Stereographer. The original image was taken by HST.
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dilo
post Jan 17 2006, 06:31 PM
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QUOTE (Harry @ Jan 16 2006, 01:17 PM)
The following image is the stereograph of Sombrero Galaxy (view: parallel eyes) synthesized by Stereographer. The original image was taken by HST.
*

Wow, Harry, this is one of my favorites!


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Harry
post Jan 18 2006, 02:02 PM
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QUOTE (dilo @ Jan 17 2006, 06:31 PM)
Wow, Harry, this is one of my favorites!
*

Thank you! I'll post the stereograph for the other galaxy later. Meanwhile enjoy the stereograph for aurora (view: parallel eyes / software: Stereographer). The original photo was taken by P. Hoffman.
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dilo
post Jan 18 2006, 05:31 PM
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I had the same idea some time ago! wink.gif
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Harry
post Jan 19 2006, 09:56 AM
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QUOTE (dilo @ Jan 18 2006, 05:31 PM)
I had the same idea some time ago!  wink.gif

Yes, that's indeed mystical... Well, the following stereograph is for the centre of our galaxy Milky Way (view: parallel eyes). It's an X-ray image and was originally taken by Chandra X-ray satellite.
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dilo
post Jan 21 2006, 07:34 AM
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Curious Milky Way center... (impression to see miriad of comets ohmy.gif ...).
Now is time to work on stunning Hubble's M42 picture... I made a cople of global and 3 enlarged details (latter are for crossed eyes)... very cool!
crossed:
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parallel(smaller):
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Thanks again for stereographer! wink.gif


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