[meteorite-list] Fireball question / sonic boom

From: GeoZay at aol.com <GeoZay_at_meteoritecentral.com>
Date: Wed, 30 Mar 2011 02:04:51 EDT
Message-ID: <510f9.3487438d.3ac42203_at_aol.com>

Eric...for some reason, the figure of about 9,000 mph sticks in my head as
the point of retardation. I don't know where to resource that figure to
see if its right or not...but I think its close.
geozay





>>>>George jut brought up a good point and I have a question. The speed
of
sound is about 760 MPH.

What is the speed at which a meteoroid extinguishes and is no longer
incandescent?>>

I believe its in the neighborhood of 7,000 mph. If its a small meteoroid,
it will extinguish way too high for a sonic boom to reach the ground.
GeoZay <<<<
Received on Wed 30 Mar 2011 02:04:51 AM PDT