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Great work you two :-)
It's certainly true that the longer/brighter meteors appear further away from the radiant. But you will get more meteors per image area near the radiant. Meteor length in my images is very neatly correlated with distance from the radiant.
This is largely a perspective effect.. the ones near the radiant you are seeing head-on so they don't move much relative to sky background. Imagine trying to get a night blur shot of a car moving towards you.
There's a probably an additional effect of meteors grazing the atmosphere at shallower angles making them brighter? Not so sure about that part of it..
Phil
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