Robert Reeves (author of the fine book "Wide-Field Astrophotography") was kind
enough to reply to a question I posed to the astrophotography mailing list
regarding meteor colors. His answer is below. Thanks for all the kind words
on the picture!
-Dick
http://www.flex.net/~dtlocke/astrophoto/leonid.htm
The colors you recorded are the same as the ones I got in a Leonid in 1998.
See http://www.robertreeves.com/leonid3.jpg I think that was a pivotal
year when film technology got good enough to record the actual colors of a
meteor's trail. Dr. Donald Olson (the same guy who does the archeoastronomy
articles in Sky and Tel) became fascinated by the colors in my 1998 photo
and did some study of it. He concluded the changes in color, the change
from green to red as the meteor plunged deeper into the atmosphere, was due
to the reactions with different gasses ionizing in the upper atmosphere in a
similar way the aurorae displays different colors at different altitudes.
Robert Reeves reeves10@xxxxxxxxxx
520 Rittiman Rd. www.robertreeves.com
San Antonio, Texas 78209 210-828-9036
USA 29.484 98.440 200 meters
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