Rosetta - Early Orbital Operations at Comet 67P C-G, August 6, 2014 - November 13, 2014 |
Rosetta - Early Orbital Operations at Comet 67P C-G, August 6, 2014 - November 13, 2014 |
Aug 6 2014, 12:56 PM
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#16
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
In the press briefing it was noted that the blue represents constant shadow, the red constant light and the yellow shows areas with dark and light periods. Also from the briefing, they want the landing area 'to have a clear day/night cycle for scientific reasons.'
Screen shots from the video linked by Emily in post 10. |
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Aug 6 2014, 12:57 PM
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#17
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
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Aug 6 2014, 01:03 PM
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#18
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Member Group: Members Posts: 107 Joined: 1-August 14 Member No.: 7227 |
How to figure out scale in these wonderful images?
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Aug 6 2014, 01:07 PM
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#19
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Junior Member Group: Members Posts: 66 Joined: 3-August 12 Member No.: 6454 |
Indeed There is an incredible amount variable terrain for such a small object. Could sublimation be the cause or is it something else? Just a guess..... but it looks to me like the smaller component's shape, resembling half of an apple core, is the result of large amounts of material spalling off during the initial collision that formed this bizarre comet nucleus, leaving just a conical central part at the contact point - which subsequently filled in a bit with dust & debris..... |
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Aug 6 2014, 01:09 PM
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#20
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Member Group: Members Posts: 201 Joined: 16-December 13 Member No.: 7067 |
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Aug 6 2014, 01:11 PM
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#21
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Member Group: Members Posts: 717 Joined: 3-December 04 From: Boulder, Colorado, USA Member No.: 117 |
Wow. And spooky! This was designed by Tim Burton (or maybe Terry Gilliam)
John |
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Aug 6 2014, 01:16 PM
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#22
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
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Aug 6 2014, 01:32 PM
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#23
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Member Group: Members Posts: 149 Joined: 18-June 08 Member No.: 4216 |
Overview image of the imges posted by Astro0, ADMIN EDIT: Please do not requote images when posting.and two images showing the zone of major dust/volatile release: Volatiles seem to be emitted primarily from the "neck". Is this similar to what was observed at Hartley 2 I wonder? |
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Aug 6 2014, 01:51 PM
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#24
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Solar System Cartographer Group: Members Posts: 10256 Joined: 5-April 05 From: Canada Member No.: 227 |
No, it's the opposite of Hartley 2.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Aug 6 2014, 02:07 PM
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#25
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Senior Member Group: Members Posts: 2173 Joined: 28-December 04 From: Florida, USA Member No.: 132 |
Maybe the neck jets represent the sublimation of superficial ice that collected in cold sinks at the end of the comet's last pass rather than indicating a deep structure of ice in the neck.
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Aug 6 2014, 02:33 PM
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#26
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Senior Member Group: Members Posts: 2346 Joined: 7-December 12 Member No.: 6780 |
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Aug 6 2014, 03:38 PM
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#27
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Member Group: Members Posts: 166 Joined: 20-September 05 From: North Texas Member No.: 503 |
In the press briefing it was noted that the blue represents constant shadow, the red constant light and the yellow shows areas with dark and light periods. Also from the briefing, they want the landing area 'to have a clear day/night cycle for scientific reasons.' ADMIN EDIT: Please do not requote images when posting.Screen shots from the video linked by Emily in post 10. If there are no significant engineering or safety constraints, I hope that the landing site selection committee avoids the areas at the end of either lobe of the comet. There you would have a great view of the local surface and dark space above. But if they can safely land in one of those green spots closer to the neck of the comet, just imagine the spectacular view - not only of the local surface, but of the other half of the comet looming overhead. |
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Aug 6 2014, 04:07 PM
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#28
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
Stereo image of the 67P/Churyumov-Gerasimenko. One image is original from OSIRIS camera (date 3.8.2014).
Second one is synthetic image obtained from OSIRIS and NavCam images. Resolution is 5.3 m/pix. Credit for original images: ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/.DASP/IDA/NavCam. -------------------- |
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Aug 6 2014, 04:08 PM
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#29
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Member Group: Members Posts: 796 Joined: 27-February 08 From: Heart of Europe Member No.: 4057 |
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Aug 6 2014, 04:37 PM
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#30
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Member Group: Members Posts: 470 Joined: 24-March 04 From: Finland Member No.: 63 |
Wonderful achievement to be here after so many years! Congrats to ESA.
To me the surface looks like snow banks shaped after a fierce storm. -------------------- Antti Kuosmanen
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