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Io, Still A Mystery Moon
Paolo
post May 29 2016, 06:00 PM
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QUOTE (jccwrt @ May 29 2016, 06:05 PM) *
II believe that these series of images was the one where Linda Moribito noticed the faint eruptive plume from Pele and discovered Io's volcanic activity.


Io's activity was detected in an optical navigation long exposure image taken after the flyby (and thus showing the nightside of Io)
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jccwrt
post May 29 2016, 06:41 PM
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QUOTE (Paolo @ May 29 2016, 01:00 PM) *
Io's activity was detected in an optical navigation long exposure image taken after the flyby (and thus showing the nightside of Io)


Ah, thanks for the correction. I guess that makes this a pre-discovery observation then. I'm a bit amazed it wasn't noticed earlier, then!
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dtolman
post Dec 15 2023, 01:41 AM
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Swedish amateur astronomy Jesper Sandberg identified the first possible impact crater ever found on Io, while studying Galileo imagery of the moon.
Poster presentation at AGU 2023 (grabbed from twitter)

Attached Image
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Phil Stooke
post Dec 15 2023, 03:55 AM
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That is great! A very nice discovery.

Phil


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Explorer1
post Dec 15 2023, 08:59 PM
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Now to bet on how long it lasts....
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Bjorn Jonsson
post Dec 15 2023, 11:24 PM
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This is the Galileo image showing the possible impact crater:

Attached Image


The possible crater is the small dark spot at center near the top.
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dtolman
post Dec 16 2023, 03:47 AM
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Close up shot of the possible crater - from an article on the discovery
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Explorer1
post Jun 5 2024, 03:06 AM
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Incredible images from ground-based observations (rivaling Juno's distant flybys!)
QUOTE
Study co-author Ashley Davies, a principal scientist at NASA's Jet Propulsion Laboratory, said the new image taken by SHARK-VIS is so rich in detail that it has allowed the team to identify a major resurfacing event in which the plume deposit around a prominent volcano known as Pele, located in Io's southern hemisphere close to the equator, is being covered by eruption deposits from Pillan Patera, a neighboring volcano. A similar eruption sequence was observed by NASA's Galileo spacecraft, which explored the Jupiter system between 1995 and 2003.

Paper here: https://www.lbto.org/wp-content/uploads/202..._GRL_108609.pdf
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