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(meteorobs) RE: trails, trains, etc
Ed Majden posted an excellent page on meteor definitions and descriptions
but I was puzzled by the last statement near the end of section 2 paragraph
1 on meteor trains reproduced here:
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2. SHORT-DURATION METEOR TRAINS (OR TRAILS)
Luminous trains left behind the meteor for up to about 3 seconds.
They are often observed visually and by video techniques in fast
meteors like Perseids. They are present also in faint meteors, of
magnitude +4 or so. In fact the ratio of the train/meteor brightness is
larger in faint meteors than in bright meteors. The train is not
connected with the meteor. In fact, it forms at a given position
with some delay after the meteor passage. The the train is also
considerably shifted to higher altitudes than the meteor which produced
it.
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I would have thought that trains are produced along the meteor's path so
what does it mean they are shifted to higher altitudes? Do these trains
occur back along the meteor track (higher altitudes) that are beyond the
visible portion of the initial meteor's illuminated track?
Pete
peter.s.gural@saic.com
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