Create Secondary Progressions Chart
Learn Astrology
Clarity. No Fluff.
Planetary Stations and Retrograde Motion in the Birth Chart
Retrograde and stationary planets in the natal chart, through both traditional and modern astrological frameworks.
Heliacal Rising and Setting: The Planetary Cycle of Visibility
Every planet cycles through visibility relative to the Sun. Heliacal rising marks first appearance, heliacal setting marks last — the most significant phases.
Explaining the Lot (or Part) of Fortune
Discover the Lot of Fortune in your birth chart — a hidden key to understanding luck, health, and material prosperity in Hellenistic astrology.
Accurate.Simple.Capable.
Made for All Levels
The chart wheel reads cleanly without astrological background. Aspect grids and planetary conditions are one click deeper for those who want them.
Simple Surface, Deep Core
Every chart type — natal, transit, synastry, returns, progressions — from a single profile.
Swiss Ephemeris
Swiss Ephemeris under professional license. Accurate to the minute of arc.
House Systems & Orbs
Switch between Placidus, Whole Sign, Koch, Equal House, and several others. Tighten or loosen aspect orbs. Add asteroids. Defaults work; the controls are there if you want them.
Accurate.
Simple.
Capable.
Made for All Levels
The chart wheel reads cleanly without astrological background. Aspect grids and planetary conditions are one click deeper for those who want them.
House Systems & Orbs
Switch between Placidus, Whole Sign, Koch, Equal House, and several others. Tighten or loosen aspect orbs. Add asteroids. Defaults work; the controls are there if you want them.
Simple Surface, Deep Core
Every chart type — natal, transit, synastry, returns, progressions — from a single profile.
Swiss Ephemeris
Swiss Ephemeris under professional license. Accurate to the minute of arc.
A Couple
of Things
What are secondary progressions?
Secondary progressions use the 'day-for-a-year' method — each day after your birth symbolically represents one year of your life. The slowly shifting positions of progressed planets reveal deep inner evolution and major life chapters.
What's the difference between the bi-wheel and single-wheel view?
The bi-wheel shows progressed planets overlaid on your natal chart, revealing how your inner evolution interacts with your birth blueprint. The single-wheel shows only the progressed chart, focusing on purely internal shifts like progressed-to-progressed aspects.
What is the progressed lunar phase?
The progressed lunar phase describes the relationship between your progressed Sun and Moon. It cycles through eight phases over ~29 years, marking alternating seasons of outward growth and inward reflection in your life.
What's the difference between Solar Arc and Naibod methods?
Both are standard methods for calculating progressed angles (MC and ASC). Solar Arc advances the MC by the Sun's actual ecliptic motion. Naibod advances the ARMC at the Sun's mean rate in Right Ascension. Both produce 'slow angles' that move ~1° per year — the difference is typically 2–6° over a lifetime.
How is this different from Solar Arc Directions?
Solar Arc Directions is a separate predictive technique — not to be confused with the Solar Arc angle method within Secondary Progressions. In Solar Arc Directions, every body, angle, and house cusp shifts by the same arc (the Sun's travel under the day-for-a-year convention), so the natal chart's geometry stays intact while sliding forward as a whole. In Secondary Progressions each body moves at its own day-for-a-year rate. The two techniques answer different timing questions.
Is the progressed chart calculator free?
Yes. You can enter your birth details and calculate your progressed chart without creating an account. Sign up to save your profile and access it anytime.