A possible role of Alpha Crucis in the astronomical landscape of Silbury Hill

Abstract

The paper is proposing a possible link between the construction of the Silbury Hill, the prehistoric artificial mound near Avebury, and the observation of Alpha Crucis, the main star of the Crux constellation, which was slowly disappearing from the local sky due to the precession of the Earth's axis. For the discussion, we used simulations of the local astronomical landscape made by means of Stellarium software.

Archaeoastronomy, Stellarium Software. In the previous layouts of the paper I have underestimated the gain of the visual angle obtained by the height of the Hill. I revised accordingly the paper