Helene Image Products |
Helene Image Products |
 Apr 4 2012, 08:11 AM
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 Member  Group: Members Posts: 557 Joined: 27-February 08 From: Heart of Europe Member No.: 4057  |
Helene from distance ~7000 km. Date 18.6.2011. Red, green a blue (BL1) filter. Resolution is ~42 m/pix.
EDIT: I uploaded new version of the image without three prominent specks of noise.
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Apr 9 2012, 02:30 PM
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#2
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Senior Member Group: Members Posts: 4586 Joined: 5-April 05 From: Canada Member No.: 227 |
An older harder crust that is being stripped away does look like the best explanation for this. If the crust lies over loose regolith, that might allow downslope movement to undermine the crusty patches and gradually eat away at them. But why do we have a crust like this? The surface of Calypso may be similar.
One of the big puzzles with these small moons is why they are so different. Janus and Epimetheus seem to have patches of dark smooth material in depressions. Helene and maybe Calypso have extensive evidence of downslope movement like this. Hyperion is incredibly rough, Telesto very smooth. Phil -------------------- ... because the Solar System ain't gonna map itself.
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machi Helene Image Products Apr 4 2012, 08:11 AM
Phil Stooke Beautiful - people, it really repays enlarging it ... Apr 4 2012, 04:42 PM tanjent Regarding the term "panning" Phil, I can... Apr 5 2012, 01:41 PM Phil Stooke I downloaded this and opened it in Photoshop, enla... Apr 5 2012, 04:15 PM Stefan Wonderful!!!
And what a bizarre little... Apr 5 2012, 06:14 PM Ian R Great shot, Daniel (BTW, north is down in this vie... Apr 6 2012, 04:12 AM elakdawalla Oh now that is a very cool tool. The original ima... Apr 6 2012, 04:44 AM tasp Maybe print a b/w version (on regular paper, not p... Apr 6 2012, 12:40 PM Ian R Ooooh! Now I want a pair of Helene photo socks... Apr 6 2012, 03:13 PM machi "Beautiful"
"Wonderful!!... Apr 7 2012, 10:09 AM
volcanopele QUOTE (machi @ Apr 7 2012, 03:09 AM) It i... Apr 9 2012, 05:27 PM Mariner9 absolutely beautiful! thanks for posting this... Apr 9 2012, 02:40 AM Bjorn Jonsson As machi's great color composite reveals, Hele... Apr 10 2012, 12:09 AM machi LSD Helene! Apr 10 2012, 01:13 PM algorimancer QUOTE (machi @ Apr 10 2012, 07:13 AM) LSD... Apr 11 2012, 01:11 PM Phil Stooke OK, this is just fooling around, it doesn't me... Apr 11 2012, 02:08 PM elakdawalla Ski Helene! Apr 11 2012, 02:50 PM tedstryk Mt. St. Helene? Apr 11 2012, 05:49 PM rogelio Just for fun: Assuming a free-fall drop of 2 km an... Apr 11 2012, 08:56 PM Phil Stooke That's my kinda skiing! Slow and steady.
... Apr 12 2012, 01:48 AM machi Final product of my efforts.
Animation of the Cass... May 5 2012, 12:11 AM tedstryk Simply beautiful. Great work, Machi! May 6 2012, 06:13 PM nprev Fan-TASTIC, Daniel!!!! May 5 2012, 12:16 AM jamescanvin Oh my goodness, that is unbelievable. May 5 2012, 08:08 PM Bjorn Jonsson Great work. And in way I'm even more impressed... May 5 2012, 09:56 PM machi QUOTE (nprev @ May 5 2012, 02:16 AM) Fan-... May 8 2012, 10:56 PM |
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Lo-Fi Version | Time is now: 19th June 2013 - 02:07 AM |
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