Full Idea
The Copernican Revolution is not so much the decentring of observers in the solar system, but (by the mathematizing of nature) the decentring of thought relative to the world within the process of knowledge.
Gist of Idea
The Copernican Revolution decentres the Earth, but also decentres thinking from reality
Source
Quentin Meillassoux (After Finitude; the necessity of contingency [2006], 5)
Book Reference
Meillassoux: 'After Finitude: the necessity of contingency', ed/tr. Brassier,R [Bloomsbury 2008], p.115
A Reaction
In other words, I take it, the Copernican Revolution was the discovery of objectivity. That is a very nice addition to my History of Ideas collection.