Aither is a double-blind peer review, Open Access online academic journal. It is indexed at ERIH+ and Scopus. It is published by the Faculty of Arts of the Palacký University in Olomouc in cooperation with the Philosophical Institute of the Academy of Sciences of the Czech Republic. It comes out twice a year. Every second issue is international and contains foreign-language articles (mainly in English, but also in German and French). The journal is registered under the number ISSN 1803-7860.
Aither 21/2019:26-45 | DOI: 10.5507/aither.2019.002
The paper deals with the brief treatise De sphaera written by Gerbert of Reims. The text is one of the so-called scientific letters addressed to Gerbert's former pupil and close friend Constantine of Fleury (all these letters were probably written at the end of 70s or at the beginning of 80s of 10th century) and describes a construction and a configuration of an observational hemisphere. The Czech translation of the treatise De sphaera is accompanied by a short presentation of the letter writer and the addressee of the letter, the article also focuses on the content of the Gerbert's letter and analyses a construction, aims and uses of a described hemisphere.
Published: March 30, 2019 Show citation
This is an open access article distributed under the terms of the Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0), which permits use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.