Wikipedia is generally one of the best sources for scientific information, 
especially as a first stop. And the article about meteors is no exception. 
While the color of meteors (especially in the case of green) is generally 
dominated by atmospheric emission, the meteoroid composition certainly plays a 
role as well. This makes meteor spectra very useful. But human color vision 
being what it is (our eyes being very poor spectrometers), it isn't possible to 
accurately determine meteoroid composition visually. 

Chris

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

ian macleod <ianmacc...@hotmail.com> wrote:

>Hi Dr Marco,
> thank you for the information you provided. I have found more than once that 
> the internet is becoming very unreliable for accurate 
> information....especially from wikipedia
>This is in no reference to Meteorites Australia (which is extremely accurate), 
>but rather wikipedia and various other websites I try to learn from having a 
>limited scientific background
>Kind Regards
>Ian                                      
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