[meteorite-list] Huge Daylight Fireball Video?
GeoZay at aol.com
GeoZay at aol.com
Mon May 18 11:57:48 EDT 2009
<<Still though, if it were a contrail from an airplane wouldn't it persist
in the air longer than it does? The "tail" of this fireball seems to
stay the same length through out the video and not stretch out across
all the way across the sky like a contrail would. Why is that?<<
Once right after sunset, I saw what appeared to be a very short "comet"
hanging in the sky, low on the horizon. It seemed to be not moving and I
thought perhaps it could be a comet. So I got out my 14X100 binoculars and
peaked at it. What I could barely make out was a jet airliner just a hair
beyond the trail. It appeared to be traveling obliquely away from me. I then
could make out slow motion and the contrail never got bigger than about half
of a small finger nails width at arms length. There was some foreshortening
going on here and probably with the video's object as well. Have someone
hold a yard stick perpendicular from you and it will look like a "yard" in
length. then have them hold it with it's end towards you and slightly askew
and it will appear very short. at long distances, the motion will become
difficult to notice.
GeoZay
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