Firdaria

Firdaria is a predictive technique used in medieval astrology where planetary rulers are assigned to 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.