[meteorite-list] Bright Streak of Light in Sky ReportedfromSouthern Oregon to Seattle

From: Gerald Flaherty <grf2_at_meteoritecentral.com>
Date: Mon Mar 21 13:24:56 2005
Message-ID: <013101c528e2$418bfb60$6401a8c0_at_Dell>

Darren, Thanks for the aurora color site. Jerry
----- Original Message -----
From: "Darren Garrison" <cynapse_at_charter.net>
To: <meteorite-list_at_meteoritecentral.com>
Sent: Monday, March 14, 2005 10:39 AM
Subject: Re: [meteorite-list] Bright Streak of Light in Sky
ReportedfromSouthern Oregon to Seattle


On Mon, 14 Mar 2005 09:05:57 -0500, "ks1u" <ks1u_at_prodigy.net> wrote:

>The thing which is most interesting to me in these fireball sightings is
>the
>color of the flame. The only fireball I saw was an orange/yellow. Is it
>reasonable to make a guess as to the composition based on flame colors, in
>the way geologists do a flame test? Or, are there too many other
>variables?

You also have to take into account, I think, the composition of the
atmosphere around the meteor.
(Here's a page on the aurora that I googled up, but the info should be fit
for the ionization of
atmospheric gasses by a meteroid, too
http://www.wonderquest.com/NorthernLightsOxygen.htm).

FWIW, I've seen plenty of fireballs that are green, and about the same
apparent size and brightness
as a round from a roman candle.
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Received on Mon 14 Mar 2005 05:07:46 PM PST