Object on the moon inconsistent in different mosaics

Looking around Ukert crater, one of the most fascinating craters on the moon, I spotted an interesting inconsitency.

(click on EXTERNAL IMAGE for better resolution images)

This is from the Clemenger Mosaic





please note the circled shape.

And upon zooming into it, it shows a symetrical 'courtyard' with a shape looming over it to the west.










yet in the same area in the Lunar Orbiter mosaic, this shape is gone. It was quite big, so I don't know why it's not there anymore.





can anyone tell me if I'm just looking into it too much or is it worth considering a good look?

[edit on 2-4-2008 by FlakeMaker]

First thing that comes to mind is the light source.

Seems to be coming from the opposite direction in the last image.

Interesting find to me, as this crater's shape seems to describe an almost perfect hexagone.

I think regardless of the light source, that black bird shape thing was removed. Cool picture for sure.

Lunar Orbiter Mosaic and Clementine-UVVIS Mosaics
have been made with images taken with different illumination and resolution:

In LOM the light source comes from right (more or less),


and if we compare the two images, we can notice that not just that specific formation is not visible in both

images:


In order to make appear the same formation in LOM too,
increase the contrast and decrease the brightness: you will get a result like this one


I think that this is the result of a different illumination angle, and of course the difference of shape can be explained with the different resolutions: it would be strange on the contrary, give the differences between LO and Clementine cameras.


[edit on 2/4/2008 by internos]