Michael A. Covington va escriu
"Paul Breed" wrote in message
...
Planets rotate while you are trying to image them.
If you image a planet, Jupiter for instance, for a periods of many
hours, maybe even many days, the imaqges would all be of a slightly
different image. The surface details would be blured by the rotation.
Why not correct for this? Take the individual round images and
project them onto a sphere, index for rotation and then stack the
result.
One could even observe for days on end and the surface model would get
better and better?
Actually I wish somebody would write a computer program to take my Mars
images (with known central latitude and longitude) and "unwrap" them into
a
standard map projection. I could then stitch them together to make a map
of Mars.
This is not a silly task. Because of sand blowing around in the wind, the
albedo (brightness) features of Mars change from year to year, and it's a
good idea to make a new albedo map every time Mars comes to opposition.
Check what Thierry Legault did for the images of the Shoemaker-Levy 9
collision with Jupiter.
http://perso.club-internet.fr/legault/
Regards,
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