1. The first Copernican was Copernicus: the difference between Pre-Copernican and Copernican heliocentrism

   • Christián C. Carman

   OriginalPaper 23 December 2017 Pages: 1 - 20

   

2. New evidence on Abraham Zacut’s astronomical tables

   • Bernard R. Goldstein
   • José Chabás

   OriginalPaper 27 January 2018 Pages: 21 - 62

3. John Holbroke, the Tables of Cambridge, and the “true length of the year”: a forgotten episode in fifteenth-century astronomy

   • C. Philipp E. Nothaft

   OriginalPaper 04 January 2018 Pages: 63 - 88

4. The mysterious table of lunar crescent visibility attributed to Al-B\(\bar{\upiota }\)rūn\(\bar{\upiota }\) and Ḥabash Al-Ḥāsib’s contribution

   • Hamid-Reza Giahi Yazdi

   OriginalPaper 17 January 2018 Pages: 89 - 98