Tertiary Progressions
In tertiary progressions, each day after birth corresponds to one lunar month (~27.3 days). Reveals inner cycles and emotional shifts.
Continue your astrological journey
Explore More
Tertiary progression works on "a day for a month", flowing about 13 times faster than secondary progression. Developed by E.H. Troinski, the technique is used especially for fine-grained timing.
One day equals one lunar month — fast progressions.
For those examining a specific period, year, or life cycle.
Date, time, place
Related Tools
Frequently Asked Questions
What is tertiary progression? ›
A directed technique equating each day after birth with one lunar month; where secondary works on a yearly scale, tertiary works monthly.
How does it differ from secondary progression? ›
Speed: one day stands for a year in secondary, for about a month in tertiary. The tertiary Moon changes sign every few days, so much finer time slices become readable.
What do I look at in a tertiary chart? ›
First the tertiary Moon’s sign, house and aspects; then tertiary planets contacting natal points. Indicators that coincide with secondary progressions and transits gain weight.
Who developed this technique? ›
German astrologer E.H. Troinski systematised it in the 1950s; it is regarded as the secondary progression scaled down to the lunar month.
Save Your Chart
Save your birth details once and reuse them across every tool.