Syndyne | Article about Syndyne by The Free Dictionary
The geometrical locus of the dust grains ejected from the nucleus of a comet continuously and having a particular value of beta.
the curve in the tail of a comet along which are located particles of approximately the same size that are continuously left behind by the comet’s nucleus.
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Over time all the particles become sorted within the tail according to their size and mass, and this distribution can be mapped as a series of synchrones (lines denoting all dust ejected at a given time) and syndynes
(lines denoting specific sizes).