I did some additional fiddling with the information I pulled out of Gingerich’s An Annotated Census of Copernicus’s De Revolutionibus. The way I now translate the city location into a country location gives more dependable results. I then separated out the movement of the first and second editions into distinct chord diagrams. I also generated a new diagram for both editions (an updated version of the previous diagram).
As before, these chord diagrams are interactive: you can mouseover (or touch, if you are using a touch device) and get information about each country and each pathway between countries.
The three chord diagrams are available:
- First edition of Copernicus’s De Rev
- Second edition of Copernicus’s De Rev
- Both first and second editions of Copernicus’s De Rev
And as before, I am indebted to Steven Hall for his tutorials and code. See: