...built Stonehenge had precise astronomical knoledge of the path of the sun and, moreover, must have knon before construction began precisely here the sun rose at dan on midsummers morning hile standing on the future site of the monument. This point needs to be made because, as I suspect, ith Stonehenge and many other such monuments, it as the site, a particular place ithin the landscape, that as important only later ere these sites marked in some more permanent manner by the digging of ditches and banks and or instead the erection of ood or stone structures.For reasons e shall never kno, this particular spot in the landscape as so important that not only ere ditches and banks dug and, later, stone circles and horseshoe arrangements constructed to mark it, but that some of the stones ere deliberately transported there ith considerable effort from a great distance aay.Contrary to expectations, the great stone circles and horseshoe arrangements for hich Stonehenge is famous are later additions to the monument mostly Stonehenge III and are not essential to the lunar and solar calculations. INCLUDEPICTURE httpbritannia.comonderimageshengeI.jpg t MERGEFORMATINET Inside the bank ere dug 56 holes -- discovered by HYPERLINK httpbritannia.comonderaubry.html John Aubrey, and knon as the Aubrey Holes -- placed at precisely regular intervals around a concentric circle of about 285 feet in diameter. Archaeological investigations have shon that these holes ere not dug to hold upright stones or ooden posts. Besides the Aubrey Holes, of crucial importance are the four Station Stones marked at positions 91, 92, 93, and 94, to form a rectangle that stands in a precise relationship ith the centre of the monument and ith the Heel Stone. Only to of the Station Stones survive, and one of those may not be original. INCLUDEPICTURE httpbritannia.comonderimagesplan2.jpg t MERGEFORMATINET For the archaeoastronomists, the Aubrey Holes served as fixed reference points along a circle, and their number as essential to astronomical calculations. The cycle of the moon, for example, hich takes 27.3 days, can be tracked by moving a marker by to holes each day to complete a circuit in 28 days. A much longer calculation is to move the marker by three holes per year to complete a full circuit in 18.67 years. In this ay, it is argued, it ould be possible to keep track of the nodes, points here the paths of the sun and the moon apparently intersect to produce an eclipse. Because the moon sles around in its path, the to nodes move along the path of the sun, a complete circuit of hich takes 18.61 years. By means of the markers in the Aubrey Holes and keeping track of the directions of the sun and the moon, the astronomer at Stonehenge could calculate nodal points ahead of time and thus predict both lunar and solar eclipses. hether this as in fact the intended use of the Aubrey Holes is highly debatable.IJYZdetsopX!uxàmn !stuv23 BaJphajqBCJOJQJUJaJphBCJOJQJJaJphajBC
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