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But given the fact that the image was taken looking almost straight-down, rotation is irrelevant. Rotating it one way only gives an illusion of an oblique view.
originally posted by: wildespace
originally posted by: Arken
a reply to: ArMaP
My bad. Sorry.
Here the coordinates of the "Obelisk", (rotation on South-East, as all this area must be seen).
Thanks for the coordinates, we can finally find it for ourselves. But given the fact that the image was taken looking almost straight-down, rotation is irrelevant. Rotating it one way only gives an illusion of an oblique view. There's no obelisk.
Thus, according to this idiot. [...] And so this idiot NASA / JPL / UoA
Why so rude, Arken?
I knew you as a boy friendly and polite, but I see that I was wrong...
But seriously, care to elaborate why you find the statement about wind erosion ridiculous? Are you a planetologist or geologist yourself?
P.S. just found that "obelisk" in HiView.
At 1:1 scale:
Magnified x4 using pixel resize:
So, a few things to recap:
1. the image is top-down, there's no oblique view.
2. the Sun was very low above the horizon, so a shadow from any tall object would have been very long. The low Sun angle also accentuates shadows seen here - meaning that what we're really looking at is small and shallow dune-like terrain features. No oblique views of square houses or anything like that.
3. another thing I realised - the sun-facing side of the obelisk would have been much brighter, at least as bright as the sunlit surfaces of these "square" formations.
P.P.S. Here's what an upright obelisk would look like, if it really stood there:
Bright sunlit side, long shadow. Note that the base of the "obelisk" is only about 1 to 2 pixels wide, translating to about 50 cm to 1 meter.
Then why did you compare it to an image of structures on a steep slope?
You must know that Hellas Basin is not an abyss, it's FLAT, a huge plain.
How can there be "heights" on a flat plain?
This anomaly that stands out from the perfectly squared heights of Hellas Basin could be one of the most important Martian anomalies that I have discovered till now.