Keywords: Short history of astronomy-Fig 61.png en Fig 61 ”Diagram used by Kepler to establish his laws of planetary motion From A Short History of Astronomy 1898 1898 https //archive org/details/shorthistoryofas00berruoft Arthur Berry 1862-1929 other versions PD-old-70-1923 Uploaded with UploadWizard A short history of astronomy 1898 |