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paul mc c

Any ideas what this is ?

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I was out this evening taking a few shots of the moon,and when scanning the surface i noticed this dark feature that i dont really know what it is,if it is a shadow it seems to be the opposite way fron the other shadows,if you know what i mean...seeing was terrible so the shots are,nt the best...any ideas ?

odd.jpg

odd +.jpg

Edited by paul mc c

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It is a shadow cast by a raised ‘hill’ (which seems to be called Promontorium Laplace) rather than within a crater, that’s why it looks different. It shows up in various maps I’ve checked.

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Yes,that would be it,it just really stood out but that would make sence probably with a fairly sharp incline.

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Those hills are quite prominent, I caught shadows off them last night too. Excuse the double image effect, I had problems stacking.

shadowhill.png.e4e0467db343ed1cd0e7be9e080e0810.png

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Some awesome forensic analysis going on here, i can here the theme for CSI playing in my head.

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10 minutes ago, Sunshine said:

Some awesome forensic analysis going on here, i can here the theme for CSI playing in my head.

Funny :)

I started off thinking I might need some help with where it actually was, but soon found it on a map.

It gives some interesting shadows depending upon its phase, and goes bright at full phase and into last quarter, with the shadow on the other side obviously.

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EFEF6E70-1193-4B89-A3BF-1B7A61CCB41B.png

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I think what causes the apparent odd angle of the shadow maybe a curved terraced feature.

These are higher resolution versions of one of the images Stu posted, from the LRO quickmap site.

The curved section would cast shadows for a prolonged period as the sun moved around it and the terrace could have something to do with the apparent break in the shadow.

639679017_ScreenShot2018-10-22at02_05_34.png.bb8c980e367761cea7c4aca9cce7ef6e.png1972271737_ScreenShot2018-10-22at02_03_21.png.aa8ee88bcc774be5dbc3d01f755fac9d.png

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And just out of interest, apropos of nothing at all, but to remind you what a great resource the LRO imagery is, here's one as close as you can get to the top of the ridge showing what appears to be a rubble field. 

What a great time to be alive!! 

1710879013_ScreenShot2018-10-22at02_11_41.png.55d0000a0cdf773b5f397fa1b715c90f.png

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1 minute ago, johnfosteruk said:

And just out of interest, apropos of nothing at all, but to remind you what a great resource the LRO imagery is, here's one as close as you can get to the top of the ridge showing what appears to be a rubble field. 

What a great time to be alive!! 

1710879013_ScreenShot2018-10-22at02_11_41.png.55d0000a0cdf773b5f397fa1b715c90f.png

Crazy hi res! I use a phone app to access the maps but obviously at far lower res than is available. Must have a look on the website.

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One more for good measure before I turn in. Quickmaps has layers to show different imagery and this is a layer showing the area when it's on/near the terminator. It's a little earlier than tonights views hence the elongated shadow. I've also turned on the contour layer to show the elevation.

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