[meteorite-list] Crater maker

From: Chris Peterson <clp_at_meteoritecentral.com>
Date: Mon Mar 21 13:24:59 2005
Message-ID: <011e01c52d6f$b4b24950$f551040a_at_bellatrix>

A good rule of thumb is that craters are roughly ten times larger than the
impactor that created them. There is, of course, a wide range of variability
here, depending on velocity and other factors.

Small craters are very uncommon on the Earth because it is so difficult for
small objects to arrive at the surface with hypersonic velocity. Most such
objects break up before reaching the ground.

Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


----- Original Message -----
From: "Michael L Blood" <mlblood_at_cox.net>
To: "Meteorite List" <Meteorite-list_at_meteoritecentral.com>
Sent: Sunday, March 20, 2005 9:39 AM
Subject: [meteorite-list] Crater maker


>I got this question (below) and wondered if anyone on the list
> has a knowledge based answer. I could only "guess" about the
> size of a basketball, but feel very much lacking in confidence
> in my guess.
> Anyone? Michael
>
> Can you tell me about how big of a meteorite it takes to make a Crater
> about
> thirty feet across?
Received on Sun 20 Mar 2005 12:10:24 PM PST