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New Iapetian image series
ngunn
post Apr 17 2007, 11:10 AM
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Info on upcoming Iapetus imaging on Rev 43 'looking ahead' on Ciclops now.
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ngunn
post Apr 19 2007, 01:28 PM
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More images appearing now.
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TritonAntares
post Apr 19 2007, 08:35 PM
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So,
next series arrived... biggrin.gif

Here two further takeouts, ~4x enlarged:

Attached Image

Date:2007-04-17
Distance: 2,310,887 km
Filters: CL1 and GRN

Attached Image

Date:2007-04-18
Distance: 2,334,981 km
Filters: CL1 and CB2

Interesting craters near the terminator in the northern hemisphere getting more and more visible now...
The huge step/rim in the north polar region is still recognizable - there even seems to be a kind of mountain near the pole at the disk rim there!
And still the bright patches at the sunlight equator region of Roncevaux Terra ...

Bye.
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Pavel
post Apr 19 2007, 08:59 PM
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Iapetus, the Yin and Yang moon smile.gif
Attached image(s)
Attached Image
 
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ngunn
post Apr 19 2007, 09:11 PM
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I'd rather say 'tennis ball moon'- more three dimensional and less philosophical baggage. smile.gif
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ngunn
post Apr 20 2007, 10:53 AM
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TritonAntares I've just created a cross-eye stereo pair from two of your recent images by photocopying them at 50 and 42 percent to match the sizes. It took only a minute to do and works a treat.
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TritonAntares
post Apr 22 2007, 10:53 AM
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Hi,
next pics are online... biggrin.gif
A takeout, ~4x enlarged:

Attached Image

Date:2007-04-21
Distance: 2,442,013 km
Filters: BL1 and CL2

Interesting overlapping craters now visible at the left side near the terminator in the northern hemisphere.
Sadly the distance being so large once again -
what a sight this angle of vision would have offered from say 400.000 km... Attached Image

Bye.
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Phil Stooke
post Apr 22 2007, 12:33 PM
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My version of that latest set, 4 images merged, showing the giant basin on the terminator.

Phil

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... because the Solar System ain't gonna map itself.

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Phil Stooke
post Apr 23 2007, 12:36 AM
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...and the next one...

Phil

Attached Image


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... 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 PD: 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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ngunn
post Apr 23 2007, 07:49 AM
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Wow - those two make a beautiful stereo pair (but you have to place them diagonally).
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Michael Capobian...
post Apr 23 2007, 06:51 PM
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It looks like the big landslide basin has a subdued inner ring, or am I imagining things?
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TritonAntares
post Jul 4 2007, 01:56 PM
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Hi again,

let me mention tomorrows far encounter of Iapetus:
Attached Image

July 5th

There'll be more parts of the terra incognita - including the huge 400-500 km bassin - visible than in April... wink.gif

Bye.
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angel1801
post Jul 4 2007, 02:17 PM
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And I can tell you the images of Iapetus taken on July 3 are in and ready for use.


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I call heaven and earth to witness against you this day, that I have set before thee life and death, the blessing and the curse; therefore choose life, that thou mayest live, thou and thy seed.

- Opening line from episode 13 of "Cosmos"
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Rob Pinnegar
post Jul 4 2007, 02:57 PM
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Yep, the big basin is nicely visible -- and what's more, it's noticeably lighter in colour than the surrounding area.

That's got to have ramifications for some of the origin theories of Cassini Regio.
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Michael Capobian...
post Jul 4 2007, 04:44 PM
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So, could ejecta from the big southern basin have covered up a pre-existing dark equatorial band that originally bisected Roncevaux Terra? (Theory number 7,234.)

Michael
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