if you look at appendix 2 in the paper this phenomenon is shown in graphic
On 21 December 2014 at 18:42, Simon B <[log in to unmask]> wrote:
> At 10:25 +0000 21/12/14, Tony Marsh wrote:
> The other is why assign the name "Sun marker" for one of the rotating
>> attachments to the aubrey positions?
> It's a Sun marker because the way it's moved causes it to circle the AH
> ring completely once every year (approx). My diagrams, for simplicity,
> start with the Sun and Moon in the AH next to the axis in the NE even
> though the eclipse shown happens on March 20th.