Side view of the fan-spine topology with a clear view of the location of the null point. The null-point location at the top of the fan surface (the site of the widest high-Q contour indicated with an elongated red surface) at a height of 6 Mm above the photosphere is marked with a green arrow and star. The approximate location of the fan surface, the inner spine (linking the null point to the parasitic negative polarities), and the outer spine (moving away from the null point) are shown with black arrows.