Welcome back, Walter
I'd like to point out that my original comment was
intended to "desuggest" copper in favor of nickel. We
who have done blowpipe mineral studies tend to think
in that framework.
Several years ago on my farm outside Ft Benning,
Georgia I saw 2 nearly identical fireballs in the
Wednesday, August 23, 2006 10:45 AM
Subject: Re: [meteorite-list] Re: Entry Burn [was Lunar Burn]
> Have a look at Ed Majden's work. He has captured the 558nm oxygen line
> on several meteor spectra.
>
> Chris
>
> *
> Chris
Ed,
Chris & me do not dispute that meteors can have different colours.
What we point out is that these colours do not necessarily reflect the meteoroid
composition, such as was assumed earlier in the thread.
This is certainly the case for reported greenish colours, as we know from what
meteo
ECTED]>
To:
Sent: Wednesday, August 23, 2006 8:42 AM
Subject: Re: [meteorite-list] Re: Entry Burn [was Lunar Burn]
Hi all -
While one might think that the difference in entry
spectra is simply a reflection of the neural function
of the eye, based on my observational experience, I
have to di
Hi all -
While one might think that the difference in entry
spectra is simply a reflection of the neural function
of the eye, based on my observational experience, I
have to disagree. Both entries were bright, and there
was a distinct difference in spectra.
I think this could go the way of the
I agree with Chris. Bear in mind that the source of the luminous phenomena we
see when we see a meteor, is not so much the meteoroid itself burning up: it's
the atmosphere around it becoming incandescend.
- Marco
There are only a limited number of meteor spectra, so the colors aren't
real
n of those contain significant nickel.
Chris
*
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
- Original Message -
From: "E.P. Grondine" <[EMAIL PROTECTED]>
To:
Sent: Tuesday, August 22, 2006 11:14 PM
Subject: [mete
Hi Chris, list
I have seen two entrie. I believe I posted the first
one to the list, and it was green - at the time I was
in Virgina, and the entry was so green I first thought
that it either had to be
a)an accidental launch warhead entry
(which I stopped thinking when nothing exploded), or
b)
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