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Altruppersdorf

Altruppersdorf

KGA Altruppersdorf could only be surveyed in its preserved western half. From the quite accurately circular remaining part of the inner ditch we can deduce a best-fit central point. This centre does not show any anomaly in the magnetogram, and from exactly this spot, none of the entrances fit a solstice or lunistice. However, from locations within less than 4m, we can see both solstices and the nothernmost lunar standstill through the entrances. Two anomalies in the magnetogram, when connected to the northwest entrance, can be “made” to fit to the northern major lunar standstill and the summer solstice sunset, respectively. The winter solstice sunset does not show any anomaly close to centre and in line with the southwestern entrance. The location to see both solstices is about 1.5m north-east of the geometrical centre, not marked by any anomaly which would indicate a central pit or posthole. If we interpret traces of strong posts in the southeastern entrance, shadows of such posts (which would have had to be 6m or higher) would have crossed the centre at winter solstice, but sunset itself was not visible from the centre through the entrance.

Strictly speaking, we can only say those entrances are close to the solstice directions, but they miss the exact directions by several degrees as seen from the unmarked geometric centre. On the other hand, the terrain is sloped by more than 6 degrees, and the southwestern entrance is almost exactly on the slope line, the northwestern entrance on the contour line of today’s terrain, which clearly favors a purely topographic interpretation of the entrances.

This KGA also has a unique landscape feature: Staatzer Berg, a conical mountain, is located very close to the winter crossquarter sunset. However, no other KGA shows a similar feature, so the alignment of the site and the mountain with the crossquarter sunset must be qualified as chance and not significant for astronomical purposes.

 

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