Decennials:
There are basically three issues with the decennials. Valens says that some carelessly started with the Sun or Moon in the decennial system even if it was not "telling" to do so. However, because there is disagreement as to what is "telling" (chrematistikoi), you may want to toggle this setting for charts you have doubt about. This setting, "Decennials start with" is shown below:
Decennials start with the first planet found after the ascendant in the order of the signs in cases where neither the Sun, nor Moon are chrematistikos according to Valens. This is handled automatically by the program.
Calendar to Use:
Valens recommended the use of a 360 day year for the decennials. This is probably because the round 360 day year represents the ideal noetic (solar) year, whereas the 365.25 day year is more chaotic/dyadic and represents not what nous intended, but what is unknowable. The exception to this was in the use of the quarters of the Moon because her dyadic contrarial nature was better represented by the actual natural year.
3rd and 4th Level:
Hephastio used a straight proportion of the times through all levels of decennials, but Valens used 129 days for the 3rd level and proportioned x/129 to each planet according to the order and circular period of the star. Select from the radio group wich method you wish to research. On the first two subdivisions, both procedures are the same.
