The magnetograms and excavations at KGA Rosenburg (max. diameter: 46m) show 2 entrances and traces of 2 palisade rings, but the exact width and location of the entrances cannot be secured, leaving the wider earth bridge extents for interpretation. In the earlier literature this KGA can be found with solstitial and lunistitial interpretations alike, however these studies appear to have been made without information about the local horizon.
After our site visit, horizon survey and topographical analysis we can securely rule out solstitial orientation. The south-eastern entrance <em>may</em> have been oriented towards the southernmost moonrise (“Major Lunar Standstill”), but the opposing entrance does not allow any similar interpretation. However, we can again identify the north-western entrance as the “upper”, the south-eastern entrance as “lower” entrance, so the orientation pattern can be easily explained as purely topographic, without any relation to celestial orientation.