Calculate progressions
Secondary progressions map your inner growth. The principle: 1 day after your birth corresponds to 1 year of life. So the 30th day after your birth shows the themes of your 30th year. Progressions reveal long-term processes of change — when your inner being shifts, when new chapters of life begin. Birth Codex calculates your progressions as part of 23 cosmic systems.
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What your progressions analysis includes
Progressed Sun — Your progressed Sun changes sign roughly every 30 years. A sign change marks a fundamental shift in your sense of life and your identity.
Progressed Moon— The progressed Moon changes sign every 2–3 years and reveals your emotional cycles and inner needs.
Life chapters — Progressions show the great chapters of your life: when does a new phase begin? When does an old cycle end?
Personal reading — No template text. Every interpretation is created individually for you and shows where you currently stand in your inner development.
How secondary progressions work
Secondary progressions follow a surprisingly simple logic: each day after your birth corresponds to one year of your life. If you are 30 years old, the calculation looks at the planetary positions on the 30th day after your birthday. This symbolic equation of a day with a year goes back to a very old astrological observation and remains one of the most reliable tools for longer-term development to this day.
Because the slow planets barely move in this calculation, the focus falls mainly on the Moon, Sun, Mercury, Venus and Mars. The progressed Moon is the fastest pacemaker here: it changes zodiac sign roughly every two and a half years, marking palpable phases of mood and theme.
For the calculation you need your exact date of birth, the time and the place of birth. The more precise the time, the more accurately the progressed positions and their transitions can be determined.
What progressions reveal about you
While your birth chart describes your fundamental disposition, progressions show how this disposition matures over the years. They make visible which themes are currently coming to the foreground, which areas are gaining in maturity and where you stand at an inner turning point.
The progressed Sun is especially revealing when it changes sign. Such transitions often coincide with a changed orientation in life: someone whose Sun moves from Aries into Taurus frequently seeks more steadiness after departure and pace had previously been at the center.
Progressions predict nothing about outer events in the sense of fate. They describe your inner development — the way you process experiences and which steps of maturing are currently due.
Using progressions in everyday life
The practical value lies in being able to place inner shifts before they take you by surprise. When your progressed Moon moves into a more withdrawn sign, a phase of quiet and reflection is often no coincidence but fits a natural rhythm. Instead of resisting it, you can consciously give this movement room.
Pay attention to the transitional times, such as when a progressed planet stands just before a sign change. These thresholds often feel unclear or undecided. Those who know that a chapter is ending and a new one beginning deal more calmly with this fuzziness.
A common misunderstanding is to confuse progressions with transits. Transits describe current outer triggers from the outside, progressions the slow inner maturing. The two complement each other: the progression shows what you are currently growing through, the transit often the concrete impulse for it.
Frequently asked questions
What are progressions?✦
Secondary progressions are a predictive method in astrology. The principle: each day after your birth corresponds to one year of life. The planetary positions on the 30th day after your birth show the themes of your 30th year.
How do they differ from transits?✦
Transits show outer influences — what is coming toward you from the outside. Progressions show inner development — how you change from within. The two complement each other: transits are the weather report, progressions are your inner season.
What does the progressed Sun show?✦
The progressed Sun moves about 1 degree per year and changes sign every 30 years. A sign change marks a fundamental shift in your identity and your sense of life — a kind of inner rebirth.