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RADIANTS ILLUSTRATED

The following are illustrations of typical radiant situations as seen on plot charts. Both acceptable and unacceptable cases are given. Likely accuracy ratings are also given where applicable. As may often be the case, accuracy would be lowered when the radiant is entangled with other radiants or is determined over two or more nights.

NOT ACCEPTABLE -- with 3 parallel paths, any 4th meteor path crossing the other three would form a radiant.Image: radiant diagram
NOT ACCEPTABLE -- 2 pairs of parallel paths are essentially just 2 single paths.Image: radiant diagram
D or C -- minimal evidence of a radiant, 3 different projections and a 4th plot for the minimum requirement.Image: radiant diagram
C or B -- diverging paths good but size of radiant large; one meteor much too long to include.Image: radiant diagram
B or A -- divergence is still good, and size small.Image: radiant diagram
A -- very small size, divergence excellent.Image: radiant diagram
NOT ACCEPTABLE -- this many meteors coming from a point is essentially impossible, shows a preconceived notion of the radiant location.Image: radiant diagram
A pair of entangled radiants (2 meteors projecting through both). D for large size and only 2 exclusive meteors, A for small size and 3 exclusive meteors.Image: radiant diagram

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