Distant vistas, Endeavour, Iazu, and beyond |
Distant vistas, Endeavour, Iazu, and beyond |
Feb 6 2010, 07:10 PM
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#76
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
I've been pondering these features, the farther and the nearer, for the last few hours but without having your handle on the subtended sizes. I believed Tesheiner (as one does ) but then couldn't find anything on Stu's Hirise crop that looked like the nearer features. Then again like Tman I thought the downward slope would be starting about where the twin craters are, so wouldn't have expected the ground to rise again immediately beyond. I can't be much use here but I'll stay closely tuned to learn how it pans out.
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Feb 6 2010, 07:25 PM
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#77
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Senior Member Group: Moderator Posts: 4279 Joined: 19-April 05 From: .br at .es Member No.: 253 |
We will certainly have to keep an eye on those features once we leave this area.
Fredk is right. Althought the horizon feature is at the right heading, it's too small to be the twin craters; those ones, combined, cover about 3.5º viewed from the current position, while the black feature has only 0.4º. Is there another feature somewhat farther than Twin Craters that the dark feature on the horizon could be? Unfortunately, the HiRISE picture I'm using doesn't cover that area. |
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Feb 6 2010, 08:02 PM
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#78
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Solar System Cartographer Group: Members Posts: 10197 Joined: 5-April 05 From: Canada Member No.: 227 |
-------------------- ... 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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Feb 6 2010, 08:10 PM
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#79
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
That looks highly plausible Phil. How far away is that? Is it on our projected route?
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Feb 6 2010, 08:18 PM
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#80
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Solar System Cartographer Group: Members Posts: 10197 Joined: 5-April 05 From: Canada Member No.: 227 |
It is about where we start to turn to the east after this long trek south and west (about 1400 m south of Concepcion).
Meanwhile, here is another look at Iazu, a comparison of two sols (cut from a post higher up in this thread). I have labelled four hills, and the way hill D gets displaced relative to the other three suggests it must be on the far rim of Iazu. 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 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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Feb 7 2010, 05:36 AM
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#81
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Stu's latest pic (which is a wow!) made me realize something that is stunningly obvious, but bears reflection: All of the geology @ Meridiani is completely buried. It take an impact to bring anything at all up above the sand. This is strikingly different from the other locales on Mars we've been able to see at this scale.
Why? -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Feb 7 2010, 08:42 PM
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#82
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Senior Member Group: Members Posts: 1229 Joined: 24-December 05 From: The blue one in between the yellow and red ones. Member No.: 618 |
The soft, sulfate sandstone surrounding us at the surface is swiftly and steadily sanded smooth in the short term.
The relatively resistant, robust rocks representing the rest retain the resplendent relief remaining from the remote realm of real rheology and resurfacing. Really -------------------- My Grandpa goes to Mars every day and all I get are these lousy T-shirts!
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Feb 7 2010, 08:53 PM
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#83
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Oh, great. Now I gotta come up with a sentence featuring words that start with "Q"??!
Quiescent quiteus, queries quintessential (quixotically?) I quit! [EDIT: Quorrected!] -------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Feb 7 2010, 10:51 PM
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#84
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Founder Group: Chairman Posts: 14433 Joined: 8-February 04 Member No.: 1 |
Quite.
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Feb 7 2010, 11:05 PM
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#85
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Junior Member Group: Members Posts: 71 Joined: 19-January 10 From: Grimsby, N.E. Lincs, UK Member No.: 5179 |
please...
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Feb 8 2010, 01:05 AM
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#86
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Merciless Robot Group: Admin Posts: 8784 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Damned if I didn't misspell "quintessential" to boot (Corrected...I hope!)! Argh. Gonna get the letter Q kicked out of the English language for good; I'll let you all know when it's done.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Feb 8 2010, 01:17 AM
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#87
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Senior Member Group: Admin Posts: 3108 Joined: 21-December 05 From: Canberra, Australia Member No.: 615 |
Please be kwik!
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Feb 8 2010, 10:23 AM
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#88
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Now we are sicks?
http://images.google.com/imgres?imgurl=htt...t%3D40%26um%3D1 |
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Feb 8 2010, 12:01 PM
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#89
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Solar System Cartographer Group: Members Posts: 10197 Joined: 5-April 05 From: Canada Member No.: 227 |
"Gonna get the letter Q kicked out of the English language for good"
Finally, a use for those defective keyboards from Dilbert. 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 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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Feb 8 2010, 10:59 PM
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#90
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Referring to the crater that appears on the horizon beyond 'twin craters' - It is about where we start to turn to the east after this long trek south and west (about 1400 m south of Concepcion). I'm still not entirely making sense of this. Using the 800m diameter of Victoria for scale I reckon we turn east less than 1400 metres south of Concepcion. Also, 1400 metres south of Concepcion would place that horizon feature below the next (downward) contour on the map. I'm aware of the limitations of the map. So I still don't know if we're going to visit that crater or not, and I'm now additionally uncertain about where the opening up of the view to the S and SW can be expected. Can anybody shed light? |
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