Horologium Augusti and the Reckoning of Time

Abstract

We shortly discuss the Horologium Augusti in Rome and some literature about it. In particular, we will consider the astronomical link of this monument to the Ara Pacis, proposed by Edmund Buchner in 1976. About this link, some inconsistency had been pointed out by L. Polverini in his "Augusto e il controllo del tempo". Some recent astronomical simulations will be discussed too.

On Dating the Lunar Eclipse of Alexander and the Battle of Gaugamela: Discussion of Evidence and Use of Archaeoastronomy for Chronology

“…So, for the dates given by the historical Julian Calendar for instance, we have to convert them into Gregorian dates. In any case, in doing the conversion, we need to be very careful, as shown and previously discussed [1][2][3][4][5]. Let us remember that the Gregorian Calendar is the reform of Julian Calendar, the calendar established by Julius Caesar and that started on the first of January, 45 BC [1].…”