Author Topic: Crater Questions  (Read 149783 times)

jules

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Crater Questions
« on: March 11, 2010, 10:09:49 pm »
If you have a question about craters - post it here.

Alice

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Re: Crater Questions
« Reply #1 on: March 13, 2010, 02:01:33 pm »
This looks crate! ;D

jules

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Re: Crater Questions
« Reply #2 on: March 13, 2010, 10:36:30 pm »
This looks crate! ;D
<<groan>> Alice!! ;D

elizabeth

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Re: Crater Questions
« Reply #3 on: March 14, 2010, 07:37:17 am »

Lovethetropics

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Re: Crater Questions
« Reply #4 on: April 08, 2010, 03:33:42 am »
I have a question about small craters:

On this image I see about 5 or more very recent craters all together about the top and center of the image.  I think it is very interesting...should I point out "recent craters" or plain "other"?  I ask because the craters are very small.  Thank you. :D


Geoff

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Re: Crater Questions
« Reply #5 on: April 08, 2010, 10:50:14 am »
I have a question about small craters:

On this image I see about 5 or more very recent craters all together about the top and center of the image.  I think it is very interesting...should I point out "recent craters" or plain "other"?  I ask because the craters are very small.  Thank you. :D



Hi Aida

I don't think the team are interested in craters that are smaller than the crater tool (unless there is something unique about the crater). I normally ignore craters that have a smaller circumference than the crater tool.

Lovethetropics

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Re: Crater Questions
« Reply #6 on: April 08, 2010, 01:31:26 pm »
Thank you Geoff, I just wanted to make sure I wasn't leaving something interesting behind.  ;D ;D ;D

jules

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Re: Crater Questions
« Reply #7 on: April 08, 2010, 05:09:15 pm »
They are certainly interested in crater chains - though I don't think what you have is a chain Aida. Hopefully the final tutoral will answer these questions!

Lovethetropics

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Re: Crater Questions
« Reply #8 on: April 08, 2010, 08:48:12 pm »
They are certainly interested in crater chains - though I don't think what you have is a chain Aida. Hopefully the final tutoral will answer these questions!

Thanks Jules!  ;D

Caro

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Re: Crater Questions
« Reply #9 on: April 14, 2010, 03:59:37 pm »
Dumb question. When is a crater no longer a crater?
Should we include ones that are very old and just about recognisable as crater shapes?
(Well, that was two questions.)

This, for instance:

« Last Edit: April 14, 2010, 04:25:42 pm by Caro »

Thornius

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Re: Crater Questions
« Reply #10 on: April 15, 2010, 01:13:47 am »
Dumb question. When is a crater no longer a crater?
Should we include ones that are very old and just about recognisable as crater shapes?
(Well, that was two questions.)

This, for instance:



I include some that are much LESS obvious than this one.

Thornius

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Re: Crater Questions
« Reply #11 on: April 15, 2010, 01:25:51 am »
Is there a way to tell craters formed by DIRECT meteorite impact, as opposed to the craters formed by the impact of the detritus from the original impact.  And studying the shapes of the craters should be able to tell us the direction, angle, and speed of the impacting object.

jules

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Re: Crater Questions
« Reply #12 on: April 15, 2010, 11:32:53 am »
Funny you should ask. Found this the other day.

Geoff

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Re: Crater Questions
« Reply #13 on: April 15, 2010, 12:12:21 pm »
Thanks for that link - added to my Cosmology/Moon favourites.

I'll keep an eye out for this "herringbone" pattern.

Geoff

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Re: Crater Questions
« Reply #14 on: April 18, 2010, 10:49:17 am »
The crater on the far right in the middle looks elongated to me - should this be classified as "Elongated Pits" or is that a different kettle of fish?


http://moonzoo.s3.amazonaws.com/v8/slices/000019492.jpg
« Last Edit: May 14, 2010, 11:16:30 am by Geoff »