Take the 2-minute tour ×
Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free.

Recently I have been reading a lot of astronomy papers on reductions in models of the solar system. A reoccurring concept is the elimination of the node. However, they never explain what the node is and why the reduction removes it. Could anybody explain this to me or otherwise refer me to some nice literature.

share|improve this question
Deprit's original paper is available at adsabs.harvard.edu/full/1983CeMec..30..181D –  John Rennie Dec 28 '12 at 18:39

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.