Kirkwood Gaps

Autor:

based on plot by Alan Chamberlain, JPL/Caltech

Shortlink:

https://czwiki.cz/b/4a4e5

Zdroj:

Wikimedia Commons

Formát:

792 x 612 Pixel (81086 Bytes)

Popis:

This histogram clearly shows the primary Kirkwood gaps in the asteroid main-belt. These gaps (labeled "3:1", "5:2", "7:3", "2:1") are caused by mean-motion resonances between an asteroid and Jupiter. For example, the 3:1 Kirkwood gap is located where the ratio of an asteroid's orbital period to that of Jupiter is 3/1 (the asteroid completes 3 orbits for every 1 orbit of Jupiter). The effect of these mean-motion resonances is a change in the asteroid's orbital elements (particularly semimajor axis) sufficient to create these gaps in semimajor axis space.

Licence:

Public domain

Credit:

http://ssd.jpl.nasa.gov/images/ast_histo.ps

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