Author Topic: Crater chains  (Read 72957 times)

weezerd

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Crater chains
« on: May 15, 2010, 02:16:52 pm »
Have I got  a good example of crater chains here?

Top part of picture (just lower than the large crater), two chains of 3 craters, each about a third in from opposite sides and both chains appear parallel!

Then to the bottom of the image another string of three, slightly more vertical alignment than the other examples, and yet another just above and to the right of that one...but not equally spaced.

Or are we looking for larger samples, or longer chains?



000187841

Longitude: 4.98972
Latitude: 49.2813

weezerd

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Re: Crater chains
« Reply #1 on: May 15, 2010, 03:24:21 pm »
More chains on the right I think:



000229324

Longitude: 281.95
Latitude: 51.7619

weezerd

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Re: Crater chains
« Reply #2 on: May 15, 2010, 04:54:49 pm »
Small chain of three bottom centre:



000305570

Longitude: 22.3857
Latitude: 30.7773

weezerd

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Re: Crater chains
« Reply #3 on: May 15, 2010, 09:18:39 pm »
Another chain, top middle just beside the one significant crater, forming a line down...is it 3 the same size, or 4 of mixed sizes?



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jules

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Re: Crater chains
« Reply #4 on: May 15, 2010, 09:27:43 pm »
These are the example from the tutorial - haven't seen many like this at all. :-\
I'm assuming the crater chains are the arrow shaped overlapping features.
 

weezerd

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Re: Crater chains
« Reply #5 on: May 15, 2010, 10:04:27 pm »
Reall? Well that's something quite different. I would have thought those examples were sinuous channels.

Oh well, do I continue with my findings, or am I in error?

jules

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Re: Crater chains
« Reply #6 on: May 15, 2010, 10:31:20 pm »
Well....
This is a pic from http://neo.jpl.nasa.gov/images/moon.html from an oblique angle.

And another from http://the-moon.wikispaces.com/Davy+Crater+Chain


That help? :-\ They seem to be very close - almost overlapping and lots of them.

Geoff

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Re: Crater chains
« Reply #7 on: May 16, 2010, 08:36:38 am »
I marked the craters at the bottom as a chain:


http://moonzoo.s3.amazonaws.com/v10/slices/000202622.jpg

Caro

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Re: Crater chains
« Reply #8 on: May 16, 2010, 03:34:19 pm »
I posted possibles here and here.

Thomas J

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Re: Crater chains
« Reply #9 on: May 16, 2010, 04:43:30 pm »
Here's a Wiki link to crater chains (catenae).

Not much info, really but it may help a little

http://en.wikipedia.org/wiki/Crater_chain

weezerd

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Re: Crater chains
« Reply #10 on: May 17, 2010, 01:43:56 pm »
Well adjusting my criteria to fit with the samples and wiki, I think I've found a couple of crater chains here.
Once again very small images but halfway down the rille (which mabe itself fits the description?) there's a
fairly large boulder with tracks above it and alongside it, and just a little lower is what looks like a spinal protuberance.



000116812

Longitude: 312.935
Latitude: 23.1411


Well I really don't know, but I'm sure that the first shot of the images which I look at is larger scale than the above one, which isn't a thumbnail. I can assure you that my eyesight really isn't that sharp!!

Ah! That's better...I increased the height to 600, so I'll do that for those which come out too small in future
« Last Edit: May 17, 2010, 01:47:58 pm by weezerd »

weezerd

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Re: Crater chains
« Reply #11 on: May 17, 2010, 02:37:00 pm »
Nice chain, just right of centre heading upwards complete with boulder at end!



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jules

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Re: Crater chains
« Reply #12 on: May 17, 2010, 04:44:33 pm »
Had a scout round for some more lunar crater chain images as I'm still slightly baffled by these.
These images are from the Internet - not Moon Zoo - just for reference. Images are hyperlinks.



« Last Edit: May 17, 2010, 06:42:50 pm by jules »

Caro

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Re: Crater chains
« Reply #13 on: May 18, 2010, 02:02:07 pm »

http://moonzoo.s3.amazonaws.com/v10/slices/000015283.jpg

Longitude: 15.3056 Latitude: -9.11139

 :-\ Yes, no, maybe ...

Geoff

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Re: Crater chains
« Reply #14 on: May 18, 2010, 02:06:50 pm »

Longitude: 15.3056 Latitude: -9.11139

 :-\ Yes, no, maybe ...

I agree  ;D