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Descriptive Survey of Families, Trojans, and Jetstreams

Published online by Cambridge University Press:  12 April 2016

C.J. Van Houten*
Affiliation:
Sterrewacht te Leiden, Netherlands

Extract

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The word “group” is so general that I would like to suggest that here it is used in its most general way: a group of asteroids is a collection of minor planets that have some feature in common. If we agree on this use of the word “group,” then we can discern the following asteroidal groups:

(1) Groups that have a dynamical cause:

(a) Trojans

(b) Commensurability groups:

(i) Hungaria group

(ii) Hilda group

(iii) Thule

(2) Groups that probably have no dynamical cause:

(a) Hirayama families

(b) Brouwer groups

(c) Jetstreams

Type
Part I-Observations
Copyright
Copyright © NASA 1971

References

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