Progressed Chart Calculator

Secondary Progressed Chart Calculator

Your Progressed Results

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Current Age: years

Progressed Ephemeris Date:

(This is the date in the ephemeris that represents your current life stage using the 'Day-for-a-Year' method.)

Estimated Progressed Movements:

• ☀️ Progressed Sun Move: ~ degrees
• 🌙 Progressed Moon Move: ~ degrees

function calculateProgression() { var birthDateVal = document.getElementById('birthDate').value; var targetDateVal = document.getElementById('targetDate').value; var birthTimeVal = document.getElementById('birthTime').value; if (!birthDateVal || !targetDateVal) { alert("Please enter both birth and target dates."); return; } var birth = new Date(birthDateVal + 'T' + birthTimeVal); var target = new Date(targetDateVal + 'T' + birthTimeVal); if (target < birth) { alert("Target date must be after birth date."); return; } // Calculate Difference in Milliseconds var diffInMs = target – birth; // Convert to years (365.2425 days for accuracy) var msInYear = 1000 * 60 * 60 * 24 * 365.2425; var ageYears = diffInMs / msInYear; // Secondary Progression Logic: 1 Year of Life = 1 Day in Ephemeris // We add the 'age' in days to the birth date var progressedDate = new Date(birth.getTime()); var daysToAdd = ageYears; progressedDate.setDate(birth.getDate() + daysToAdd); // Estimated Solar/Lunar movement // Sun moves approx 0.9856 degrees per day // Moon moves approx 13.176 degrees per day var sunMove = (ageYears * 0.9856).toFixed(2); var moonMove = (ageYears * 13.176).toFixed(2); // Display Results document.getElementById('currentAge').innerText = ageYears.toFixed(2); document.getElementById('progEphemDate').innerText = progressedDate.toDateString() + " " + progressedDate.toLocaleTimeString(); document.getElementById('sunMove').innerText = sunMove; document.getElementById('moonMove').innerText = moonMove; document.getElementById('resultsArea').style.display = 'block'; }

Understanding the Progressed Chart

In the realm of predictive astrology, the Secondary Progressed Chart is one of the most significant tools for understanding internal growth and the evolution of the soul. Unlike transits, which represent external influences acting upon you, progressions represent the unfolding of your natal potential over time.

The "Day-for-a-Year" Formula

The logic behind a progressed chart calculator is based on the biblical and symbolic principle of a day for a year. If you are 30 years old today, your progressed chart is a "snapshot" of the heavens exactly 30 days after you were born. The movements of the planets during those first few months of life describe the psychological development you experience over decades.

Key Factors in Progression

• The Progressed Sun: Moves roughly 1 degree per year. It represents the changing focus of your identity and your evolving life purpose. When the Progressed Sun changes signs (which happens every 30 years), it marks a major shift in your personality.
• The Progressed Moon: This is the fastest-moving element in the progressed chart, moving about 1 degree per month. It completes a full cycle around your chart every 27-28 years, signaling major emotional chapters.
• Progressed Stations: If a planet was about to turn retrograde or direct shortly after your birth, it will "station" in your progressed chart, indicating a profound turning point in that planet's energy during your life.

How to Use This Calculator

To find your progressed ephemeris date, simply enter your birth details and the date you wish to investigate (usually today). The calculator determines exactly how many days have passed in the "symbolic" calendar. You can then look up a traditional ephemeris for that specific Progressed Ephemeris Date to see exactly where your planets have "moved" to.

Example: If you were born on January 1, 1990, and you want to see your progressions for your 25th birthday, this calculator would look at the planetary positions on January 26, 1990 (25 days after your birth).

The Difference Between Transits and Progressions

Think of transits as the weather outside—it might be raining, or it might be sunny. Progressions, however, are like your internal biological clock or your personal maturity level. While transits tell you what is happening to you, the progressed chart tells you who you are becoming.