Dates of Primary Directions
This chart will compute all the dates of primary directions, using the
first ring as the source of significators. The promissors will be nevertheless
limited by the restrictions set from the second ring. The directions will
be computed with respect to the Regiomontanius, Placidus or Campanus
house systems. You can also choose between the Mundane or Zodical
system, and select the directions key, i.e. arc/duration conversion
factor: Ptolemy, Naibod, Simmonite, Cardan, Synodic or Placidian (true solar arc).
The values can be dumped into the SQL table AspTbl.