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5. Meteoroid Populations and Orbits

Published online by Cambridge University Press:  12 April 2016

Z. Ceplecha

Abstract

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Statistical studies of the photographic data on atmospheric trajectories and orbits of meteors (from 10-4 g to hundreds of tons) point to 5 groups of bodies with different structure and composition. The following classification is proposed: Fireball group I = exceptional cases of so-called “asteroidal” bodies among Super-Schmidt (SS) and small-camera (SC) meteors 5 ordinary chondrites. Fireball group II = group A among SS and SC = carbonaceous chondrites. Group B among SS and SC = dense cometary materials with small perihelion distances (not distinguishable among fireballs). Fireball group IIIa = group C among SS and SC = regular cometary material. Fireball group IIIB = group D (above C) of SS and SC = Draconid-shower type of cometary material. Statistics of the orbits for separate groups is considered and characteristic orbits are given.

Type
Part III. Meteors and Meteoroids
Information
International Astronomical Union Colloquium , Volume 39: Comets, Asteroids, Meteorites: Interrelations, Evolution and Origins , December 1977 , pp. 143 - 152
Copyright
Copyright © A.H. Delsemme 1977

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