[meteorite-list] Temperature of meteorites

From: Chris Peterson <clp_at_meteoritecentral.com>
Date: Tue, 23 Nov 2010 07:50:50 -0700
Message-ID: <E6467F559B71465A8612B6912B003640_at_bellatrix>

I'd be very cautious with reports of perceived meteorite temperatures. How
we feel temperature depends on many factors- the actual temperature of the
object, of course, but also the temperature of our skin, the ambient air
temperature, and perhaps most important, the thermal conductivity of the
object.

I think that in the majority of cases, the surface of the meteorite will be
fairly close to ambient temperature- probably not more than ten degrees
either way- which means that people will tend to be very poor estimators of
temperature.

Chris

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


----- Original Message -----
From: <lebofsky at lpl.arizona.edu>
To: <bernd.pauli at paulinet.de>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Tuesday, November 23, 2010 3:46 AM
Subject: Re: [meteorite-list] Temperature of meteorites


Thanks Bernd:

This will help a lot!

My guess is that "warm" means warmer than the air temperature, but
probably not much warmer than body temperature since even 15 to 20 degrees
Centigrade (125 to 135 degrees F) is considered hot.

Given that some have been said to be frosty, and one always hears that
they are the temperature of space, how many of the "hot" ones might
actually be too cold to handle? Maybe that is the myth! I am very
surprised that anything small that has had a chance to cool down in the
atmosphere would still be to hot to handle on the ground.

I guess I will just have to wait and see my own Fall and pick it up quickly!

I wish I could find the old Lost City fall picture of the meteorite in
snow. I do not remember seeing any melted snow around it, but it must have
been warm enough to attract a dog.

Larry
Received on Tue 23 Nov 2010 09:50:50 AM PST