Decennials, Firmicus Maternus Online Calculator, (Planetary Decades) Timing method from Mathesis Astrology Planetary Periods

Decennials Calculator
(Planetary Decades)

Traditional time-lord method

This method divides the life into 7 different periods, each lasting 10 years and 9 months. Each of these is governed by one of the 7 planets.
  • The first period starts with the sect light, Sun for diurnal charts, Moon for nocturnal.
  • Following periods/time-lords continue by the next planets after the sect light, going in zodiacal order.
  • Each period is divided into 7 sub-periods. The first sub-period belongs to the same planet as the entire decade. The order of the sub-periods is determined in the same way as the main periods.
  • Optional:
  • Start from Sect Light, Apheta or any other planet
  • Calendar (1 year ~ 360 or 365.25 days)
  • L3 & L4 sub-periods

Decennials (Planetary Decades) - Online Calculator

Date of Birth
Time (local time)
h min
Start from:
Cycle
Calendar to use
L3 & L4:
Current planets
Sun
Cancer
13°00’
Can
 
Moon
Virgo
18°26’
Vir
 
Mercury
Gemini
29°30’
Gem
 
Venus
Gemini
14°19’
Gem
 
Mars
Aries
29°50’
Ari
 
Jupiter
Aries
7°48’
Ari
 
Saturn
Aquarius
24°32’
Aqu
R
Uranus
Taurus
17°54’
Tau
 
Neptune
Pisces
25°25’
Pis
R
Pluto
Capricorn
27°42’
Cap
R
Node (M)
Taurus
19°44’
Tau
R
Node (T)
Taurus
20°59’
Tau
R
Lilith (M)
Cancer
9°01’
Can
 
Chiron
Aries
16°20’
Ari
 
When does the planet enter the next Sign?

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