Archaeoastronomy of the Sun path at Borobudur

The world famous Javanese temple of Borobudur is located at the westernmost end of a straight line which includes two satellite temples, Mendut and Pawon. Originally, the three buildings were probably connected by a processional path running along this line. It is shown here that the alignment points, at the horizon, where the sun sets in the days of the zenith passages. This orientation is likely intentional and related to a ritual procession which connected the three temples, mimicking the path of the sun in the sky.