Which cycle has the biggest impact on solar insolation, eccentricity, obliquity

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Which cycle has the biggest impact on solar insolation, eccentricity, obliquity or precession´╝č 


Wikipedia says that — e sin(¤ľ) is the precession index, which together with obliquity, controls the seasonal cycle of insolation. 
So think either obliquity or precession influence it biggest. I am thinking maybe precession plays a larger role? But I am not sure, could anyone correct me or explain a little bit?
Jun 14th, 2015

Thank you for the opportunity to help you with your question!

Obliquity influences insonation more.

Precession occurs in 26000 years and has a negligible effect on insolation.

Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 14th, 2015

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Jun 14th, 2015
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Jun 14th, 2015
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