New Horizons at Io |
New Horizons at Io |
Mar 1 2007, 09:02 PM
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#76
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
COOL! Looks like their are two plume sources at Masubi.
-------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Mar 1 2007, 09:08 PM
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#77
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Could we be seeing another plume at around 5:30 on the limb? There's some suspicious fuzzyness there.
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Mar 1 2007, 09:12 PM
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#78
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Could we be seeing another plume at around 5:30 on the limb? There's some suspicious fuzzyness there. I noticed that too. Can't be sure just from this image, hopefully we can say for sure when the rest of the images come down. Some thing to look for. Good Eyes! -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Mar 1 2007, 09:22 PM
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#79
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
Here all the visible plumes as well as my candidates for additional discrete plumes so far:
The Tvashtar eruption seems like a double plume. -------------------- |
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Mar 1 2007, 09:42 PM
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#80
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Senior Member Group: Moderator Posts: 3241 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
Good eyes.
With out a lat-lon grid this is difficult to assess, but I'll give it a stab. Let's assume for a moment that those bumps at 5 o'clock and 5:30 are real features (they might be, they might not be, difficult to say). The bump at 5:30 might be a plume associated with the volcano Aramazd Patera. The bump at 5 o'clock I think is the mountain Euboea Montes. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
The Gish Bar Times - A Blog all about Jupiter's Moon Io |
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Mar 1 2007, 09:59 PM
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#81
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
The 5:30 feature definitely makes for a more convincing case than the 5 o'clock one. You're probably right on it being a mountain. The Tvashtar plume either got a weird twist or there's also something else erupting there.
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Mar 1 2007, 10:05 PM
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#82
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
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Mar 1 2007, 10:08 PM
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#83
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
Hands up confession time... I've never really been that excited by Io (ducks to avoid slapping hand of volocanopele! ) but wow, that image is a stunner... the detail in that plume is just incredible.
Imagine what that would have been like in colour... -------------------- |
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Mar 1 2007, 10:12 PM
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#84
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Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
After closest approach, Io's quickly reduced to a waning crescent, allowing for longer exposures. While the resolution will rapidly diminish, we should be able to see numerous plumes crop up in scattered light and jupitershine. And likely with some (low resolution) color, too!
What a great week! -------------------- |
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Mar 1 2007, 10:31 PM
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#85
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Member Group: Members Posts: 288 Joined: 28-September 05 From: Orion arm Member No.: 516 |
... ... Amazing, simply amazing. Really picturesque. Impressive what NH cameras can achieve with the dark Io-hemisphere in jupitershine. Makes us hope for Pluto and Charon - even if it's much darker out there! Btw., there are some mensae visible at the terminator, here a nice close up of such mountains imaged by Galileo: Bye. |
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Mar 1 2007, 10:38 PM
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#86
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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Mar 1 2007, 10:57 PM
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#87
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Member Group: Members Posts: 706 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
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Mar 1 2007, 11:07 PM
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#88
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Senior Member Group: Members Posts: 2492 Joined: 15-January 05 From: center Italy Member No.: 150 |
Great colorization, Stu!!!
Waiting for the full picture... (sad to think we will not see such kind of images for a while, even if with the most advanced AO telescopes the particular geometry/lighting which make possible to see such volcanoes and mountains aren't possible from Earth!) -------------------- I always think before posting! - Marco -
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Mar 1 2007, 11:15 PM
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#89
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IMG to PNG GOD Group: Moderator Posts: 2254 Joined: 19-February 04 From: Near fire and ice Member No.: 38 |
Here is a properly shaded version with exaggerated Jupitershine showing at higher resolution what's visible in the NH image. As discussed when the first Io images appeared some changes are visible.
In addition to a texture map I used a crude elevation map where I 'manually' painted in all of Io's major mountains using a table from a paper published in Icarus (or possibly JGR - I'm too lazy to check) several years ago as a guide. In addition to the table I also used various images as a guide. This now seems to have been more successful than I thought although various 'errors' can be spotted. Various mountains and mesas are obvious near the terminator. |
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Mar 1 2007, 11:27 PM
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#90
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The Poet Dude Group: Moderator Posts: 5551 Joined: 15-March 04 From: Kendal, Cumbria, UK Member No.: 60 |
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