How Progressions Work
The most widely used system of progressions is the secondary progression, which operates on the principle of "a day for a year." Every day after your birth corresponds to a year of your life. So the positions of the planets on the day that was 30 days after your birth describe the progressions for age 30; the positions 40 days after your birth correspond to age 40, and so on.
This might sound arbitrary, but it produces remarkably accurate timing correlations in practice. Astrologers have been using this technique for centuries and consistently find that progressed planet changes correspond to real shifts in people's inner life and life direction.
The Progressed Sun
The Progressed Sun moves through one degree of the zodiac per year, and it changes sign roughly every 30 years. The progressed Sun sign change is one of the most significant developments in a progression chart — it describes a fundamental shift in the direction and quality of your identity development.
Someone whose natal Sun is in late Scorpio will experience their Progressed Sun entering Sagittarius at some point — and the shift in energy tends to be noticeable. The intense, investigative, psychologically-focused qualities of Scorpio give way to a more expansive, freedom-seeking, philosophically-oriented phase. The natal Scorpio chart doesn't disappear; it's still the foundation. But the top layer of development has shifted.
The Progressed Moon
The Progressed Moon moves much faster than the Progressed Sun — it changes sign approximately every two and a half years. This makes it the most active indicator in a progressed chart and one of the most reliable timing tools in astrology.
The Progressed Moon's sign describes the emotional tone of the current two-and-a-half year phase of your life. Progressed Moon in Cancer tends toward a period of domestic focus, emotional deepening and increased sensitivity. Progressed Moon in Aries tends toward a period of new beginnings, increased energy and forward momentum. Progressed Moon in Capricorn tends toward seriousness, professional focus and a pared-down emotional register.
Tracking where your Progressed Moon is currently sitting — and which house it's moving through — gives you a reliable guide to the emotional themes and practical focus of the current chapter of your life.
Progressed Aspects
When progressed planets form aspects to natal planets — particularly the conjunction, square and opposition — those moments tend to be significant. A Progressed Venus conjunct natal Sun often coincides with relationship beginnings or artistic flowering. Progressed Mars square natal Moon can bring a period of emotional tension and the need for assertive action in personal life.
These aspects move extremely slowly — sometimes taking years to perfect — which means they describe sustained periods rather than specific days or weeks.
How to Access Your Progressions
Astro.com provides secondary progressions as a free service. Generate your natal chart, then select "Secondary Progressions" from the chart type options and enter today's date. Compare the progressed chart to your natal chart to see what has shifted and what aspects are currently active. The Progressed Moon's sign and house position is always the most immediately useful place to look for current life chapter information.
