Re: (meteorobs) Changes in meteor color (was Re: WILL WE SEE GEM FIREBALLS TONIGHT?)

• To: Meteor Observing Mailing List <meteorobs@jovian.com>
• Subject: Re: (meteorobs) Changes in meteor color (was Re: WILL WE SEE GEM FIREBALLS TONIGHT?)
• From: Rob McNaught <rmn@aaocbn.aaodot gov.au>
• Date: Wed, 22 Dec 1999 06:05:31 +1100 (EST)
• In-Reply-To: <199912211806.AA06219@trilliandot dev.latrade.com>
• Reply-To: meteorobs@jovian.com
• Sender: owner-meteorobs@jovian.com

I almost never notice any colour in a meteor but when I was in Tucson last
week, Steve Larson commented on the Leonid fireballs he saw in 1998
showing a clear progression from green to red.  This colour progression is
very clearly evident in the amazing Leonid photo by Iyad Mustafa from
Jordan this year.  His 10 minute exposure with a 28mm f/2.8 lens on
Ektapress 800 ISO colour neg film has around 100 Leonid trails although
only(!) some 70 appear on the print.  All but the faintest trails show
the variation from green thru yellow to orange/red.  See the image at the
following sites

http://www.jas.org.jo/leo1.jpg
http://www.astro.uni-bonndot de/~dfischer/leo99/story.html

and Daniel Fisher's experiments at enhancing the image

http://www.astro.uni-bonndot de/~dfischer/leo99/iyan.html

This must be one of the great meteor photographs of all time!

Cheers, Rob

Robert H. McNaught
rmn@aaocbn.aaodot gov.au

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• (meteorobs) Changes in meteor color (was Re: WILL WE SEE GEM FIREBALLS TONIGHT?)
• From: Lew Gramer <dedalus@latrade.com>

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