More information and photos on the links below
The Wurdi Youang stone arrangement in Victoria was built by the Wathaurung people before European settlement, but all records of its use have now disappeared. This egg-shaped ring of stones, about 50m in diameter, has its major axis almost exactly East-West. At its Western end, at the highest point of the circle, are three prominent waist-high stones. Morieson (2003) pointed out that some outlying stones to the West of the circle, as viewed from these three stones, seem to indicate the setting positions of the Sun at the equinoxes and solstices. Norris et al (2008) have confirmed these alignments and have shown that the straight sides of the circle also indicate the solstices.
However, a sceptic might still raise some doubts. First, the outliers are only accurate to a few degrees - could these alignments have occurred by chance? Second, although the stones of the circle are large and immovable, the outliers are small and could have been moved. Third, besides the outliers indicating the solstices and equinox, there is an additional outlier whose significance is unclear. While these doubts may seem contrived, they have to be answered, and the best way to do so would be to find another site with similar astronomical alignments. Other stone arrangements in Victoria also indicate the cardinal points, from which we may conclude that the local Aboriginal people knew these directions with some precision, presumably by observing celestial bodies. But are there other sites which point to the position of the solstices? The search continues.
http://www.atnf.csiro.au/research/AboriginalAstronomy/Examples/WurdiYouang.htm
Wurdi Youang, Australia. Portal to the Heritage of Astronomy, UNESCO.
The Wurdi Youang site is one of a number of stone arrangements known in the state of Victoria that were built by Aboriginal people before European settlement. It is on land traditionally owned by the Wathaurong Aboriginal people and may be an initiation site. Its construction date is unknown, and could be anywhere in the range c. 25000 BC to about 1835 AD. All records of its use have disappeared. Archaeoastronomical surveys indicate that it was related to observations of the changing setting position of the sun on the western horizon.
Rocky ways to secrets of skies
IT LOOKS like a simple ring of carefully laid out stones, but an egg-shaped Aboriginal stone arrangement outside Geelong is being talked about by some as Victoria's own Stonehenge.
While there are few records to explain its use, and little information about its age, it was thought to be an indigenous initiation site. But in recent years clues have emerged to suggest it could be an example of some of Australia's earliest astronomy.
After repeated observations, Victorian cultural historian John Morieson found that, viewed from three prominent stones, some smaller outlying stones seemed to indicate the position of the setting sun during equinoxes and solstices.
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These observations were confirmed by CSIRO astrophysicist and Aboriginal astronomy researcher Ray Norris, who found the overall design of the circle also appeared to point towards the solstices.
http://www.theage.com.au/national/rocky-ways-to-secrets-of-skies-20080801-3omb.html
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