Stonehenge's latitude is unique however in that only at this point do the lunar and solar events above occur at right angles to one another, elsewhere the station stones would have to be set out as a parallelogram.
Stonehenge's latitude is unusual in that only at this approximate latitude (within about 50 km) do the lunar and solar events above occur at right angles to one another. More than 50 km North or South of the latitude of Stonehenge, the station stones would have to be set out as a parallelogram.