Firdaria is a predictive technique used in medieval astrology whereby planetary rulers are assigned to specific periods of life. It is associated with the Chaldean Order of the planets. Each major period starts and ends on the person's birthday.
Diurnal births commence with the Sun (10 years), followed by Venus (8 years), Mercury (13 years), Moon (9 years), Saturn (11 years), Jupiter (12 years), Mars (7 years), North Node (3 years) and South Node (2 years). After 75 years, the cycle repeats itself, starting again with the Sun.
Nocturnal births commence with the Moon (9 years), followed by Saturn (11 years), Jupiter (12 years), Mars (7 years), North Node (3 years), South Node (2 years), Sun (10 years), Venus (8 years), Mercury (13 years). After 75 years, the cycle repeats itself, starting again with the Moon.
The Fixed Stars are the points of light in the night sky which form the constellations. Certain fixed stars are used in the following branches of astrology: natal, mundane, horary and electional. Both Dee and Flamsteed are famous for their inclusion of Regulus in their elections for the Coronation of Queen Elizabeth I and the Greenwich Observatory respectively.
A planet beyond 17 degrees in longitude from the Sun. (Planets within 17 degrees of the Sun are weakened by the Sun's power).