[meteorite-list] Average size of craters across the solar system?

From: lebofsky at lpl.arizona.edu <lebofsky_at_meteoritecentral.com>
Date: Sun, 28 Jan 2007 20:08:49 -0700 (MST)
Message-ID: <3142.71.226.112.144.1170040129.squirrel_at_timber.lpl.arizona.edu>

Hi Darren:

Lots of other factors going on:

Extra velocity caused by the gravity of the impacted body.

Composition of the surface being hit.

Composition/density (and thus mass) of the impactor.

Surface processes that will affect the loss of craters or their just
fading away.

At some point, with an old surface, you get saturation of craters, so
reach a certain limit on number and size of craters.

I am sure there are other things, but it has been a long day.

Larry

On Sun, January 28, 2007 5:47 pm, Darren Garrison wrote:
> I was just thinking about this, wondering if anyone has tried to compare
> average sizes of craters across bodies in the solar system? I was
> thinking along the lines that, since orbital velocity is higher the closer
> an object is to the sun, then there should be more "bang for the buck" for
> impactors. So, shouldn't for example, the average crater size on Mercury
> be bigger than the average crater size on the moon?
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Received on Sun 28 Jan 2007 10:08:49 PM PST