[meteorite-list] Temperature of meteorites

From: m42protosun <m42protosun_at_meteoritecentral.com>
Date: Tue, 23 Nov 2010 01:01:01 +0100
Message-ID: <1PKgJh-16u7pA0_at_fwd01.aul.t-online.de>

Hi,
after glowing off, the small size meteorites passes thru Stratosphere with temperatures of minus 60 ?C in winter and -10?C in summer. During their minute-flight thru the atmophere they warm up to normal temperature.

Only large objects which fly til the ground with hight supersonic speed (like Sikhote Alin) contact the ground with temperatures above 500?C.

What I will say, the temperature depends on the landing speed. If it is the normal velocity of fall of earth gravity the meteorite is cold, if it is supersonic speed, it could be very hot.

m42protosun

-----Original-Nachricht-----
Subject: [meteorite-list] Temperature of meteorites
Date: Tue, 23 Nov 2010 00:34:24 +0100
From: lebofsky at lpl.arizona.edu
To: "Chris Peterson" <clp at alumni.caltech.edu>
Cc: meteorite-list at meteoritecentral.com

Hi all:

I am in the middle of a workshop on asteroids and meteorites. At the end
of the first day, the teachers get to write down questions that they would
like answered. During the session, I had said that when they land,
meteorites are cold, not burning hot. The question that was asked was "how
cold?" What is the best estimate we have for the ambient temperature of
meteorites after they have passed through the atmosphere?

Thanks.

Larry

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Received on Mon 22 Nov 2010 07:01:01 PM PST