Analyzing this Titan photos of Voyager 1 shows a hood ... it is to the north or the south pole?
That's the north polar hood. The Voyager 1 flyby was just after northern Spring equinox, so the hood from the previous northern winter had not yet dissipated.
John
not 100% sure the exact same image
" c3491749.imq "
added a grid , the blue dot is 0 lat and 180 long , the yellow dot id the northpole
http://imgbox.com/0nTHEvB6
Am I imagining this, or did someone point out some time ago that if you process the living daylights out of Voyager 1 imagery, the northern lakes are just visible? I thought I read this on this forum somewhere, but am having trouble finding it with the search terms I am using, and Google doesn't seem to be my friend either.
I could swear I remembered a thread too. There is http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.205.4987&rep=rep1&type=pdf, though I can't recall finding the thread itself.
i do not think it was titan , but Uranus
you can get a few things out of the 8 bit images for that planet , but most things are just the 8 bit depth
I do recall a study which showed very faint dark markings on Titan in Voyager 1 images. Not back in the early 80s, but quite a bit later, I think. And absolutely not the polar lakes, but the areas we now know to be dark sand dunes near the equator. But there was never a clear view of anything, only the very vaguest hint of dark areas. I don't recall any comparison with recent maps.
EDIT - oops, there was a comparison! Here is the paper:
http://www.jerichardsonjr.info/Papers/jerichardson_ICAR2004.pdf
Phil
This is why I so much hoped to find the digital Pioneer 11 scans. It had a true red channel, so although the resolution was poor, extracting the surface just might be possible.
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