[meteorite-list] Very Bright Fireball Over Europe on Halloween Night

From: Chris Peterson <clp_at_meteoritecentral.com>
Date: Thu, 05 Nov 2015 07:15:17 -0700
Message-ID: <563B6475.6080907_at_alumni.caltech.edu>

Hi Doug-

I don't think atmospheric extinction normally plays much of a role in
color perception of bright meteors. You don't get a full magnitude
difference between red and blue until you are about 15? above the
horizon, or about four air masses. And even at a magnitude difference,
I'd only expect a small impact on perceived color.

Angle, however, translates to apparent speed, and I do think that might
be an important factor in how people perceive color. I will say,
however, that I haven't found any sort of systematic shift in color
reports based on the distance from the fireball to the witness.

Chris

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

On 11/4/2015 8:25 PM, Doug Ross wrote:
> Thanks for the very informative and interesting discussion. Could the altitude, angle and distance from which a meteor is viewed also affect perceived color? Seems to me that the air between the fireball and the witness might significantly filter the colors, in the same way that the sun can appear red at sunset, viewed at a low angle through more atmosphere.
>
> Doug Ross
Received on Thu 05 Nov 2015 09:15:17 AM PST