Enceladus Jet Sources |
Enceladus Jet Sources |
Oct 10 2007, 05:20 PM
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#1
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
New press release by the imaging team:
Cassini Pinpoints Hot Sources of Jets on Enceladus October 10, 2007 (Source: Space Science Institute) CICLOPS link to the release here. One thing I was curious about tiger stripe naming - why didn't they switch "Baghdad" and "Cairo" so we have a nice A,B,C,D progression? I can only imagine it was done on purpose, but why? -------------------- |
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Oct 9 2010, 10:25 AM
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#2
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Rover Driver Group: Members Posts: 1015 Joined: 4-March 04 Member No.: 47 |
I see a little bit of a ring, but indeed small contrast. Might be optical illusion. But very sharp boundary indeed. It's just weird
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Oct 9 2010, 11:32 AM
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#3
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Perhaps the most compelling evidence that this is not an optical artifact or optical effect in the ring particles comes from comparing two frames taken at different distances.
Below's a comparison of two clear filter frames taken from 617 000 km and 540 000 km, that's a 14% difference in distance. First, both images at their original pixel scales: And here's the match when resized to the same pixel scale: The overall E-ring brightness drops off rapidly with lowering phase angle so it's not really surprising this can only be seen in the highest phase angle imagery Cassini has obtained so far (notwithstanding the grand Saturn eclipse sequence as that was too low resolution). -------------------- |
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Lo-Fi Version | Time is now: 15th June 2024 - 09:48 AM |
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