Sicily’s 2,500-year-old Greek Temple was built to face full moon, new study says

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A new study, conducted by a team of Kiwi and Italian researchers, reveals the orientation of the ancient Greek monuments at Sicily’s Valley of the Temples. The research invalidates the belief that these temples were originally built to face the sun and shows that, while some of them are indeed aligned with astronomical events like the full moon, there are others whose construction was influenced by an altogether different set of factors, such as urban planning.

Recently published on, the research was conducted by scientist Giulio Magli, in collaboration with Robert Hannah at New Zealand’s University of Waikato and Andrea Orlando of the Catania Astrophysical Observatory. In the study, the team thoroughly surveyed the Valley of the Temples, in order to determine the orientation of the ancient structures. Located in Agrigento in the southern part of Italy, the site houses the remains of as many as 10 Doric shrines, each dedicated to a Greek god, goddess or hero, such as Juno, Heracles, Demeter and Persephone, Olympic Zeus, Vulcan, Concordia, Aesculapius and so on.

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The Temple of Concordia at Sicily’s Valley of the Temples

Built nearly 2,500 years ago, the temples were included in the list of World Heritage sites in 1997. While a lot has been speculated about their orientation over the years, the research is one of the first to attempt a thorough, constructive examination of these ancient monuments. According to the team, four among them are aligned in accordance with Agrigento’s (previously known as Akragas) layout, with no connection whatsoever with the sun’s position Speaking about the find, Magli, a professor of archaeoastronomy at the Polytechnic University in Milan, said:

Alignment was widely determined by urban layout and morphological aspects of the terrain as well as religious connections… For such temples, only a general rule imposing the facade towards the eastern horizon was applied. However, they were not orientated toward the rising sun on specific days of the year.

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The Temple of Juno was aligned to the stars in the Delphinus constellation

The Temple of Juno Lacinia, for instance, was built such that it faced the stars in the Delphinus constellation, while the Temple of Demeter and Persephone was found to be aligned with the setting full moon during winter solstice. The unfinished Temple of Zeus, believed to the largest Doric temple ever erected, was likely oriented in keeping with the town’s grid. Talking about the now-dilapidated Temple of Demeter and Persephone, Magli added:

One can only imagine the spectacle at the temple. The full moon near the winter solstice – the longest night of the year – culminates very high in the sky and remains in the sky the longest.

This temple is of special importance, since its architecture clearly points to a moon-based alignment. Situated inside a corridor, running along the side of the temple, are two uniquely-shaped circular altars, one of which contains a central well or bothros. During their survey, the researchers retrieved several broken pieces of kernoi, basically a type of ritual vessel used in the worship of Demeter, from the well. The temple also has a large artificially-constructed open area at the back. The team explained:

We can imagine a nocturnal procession coming up from the fountain sanctuary and reaching the temple, in front of which, however, there is not enough space to house worshipers. Then they gathered in the vast esplanade on the back of the temple. From there, they would have witnessed the spectacle of the full moon high over the hill of the acropolis.

Via: Discovery News

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