Last updated: June 6, 2026

Secondary Progressions

Secondary Progressed Chart Calculator

Enter your birth data and a progression date to see your progressed Sun, Moon, planets, lunation phase, and the progressed aspects active in your natal chart. An exact birth time also unlocks the progressed Ascendant, Midheaven, and houses.

Birth Time Accuracy

Don't know your exact time? Refine it later with our birth time rectification tool.

This only changes the progressed Ascendant and Midheaven. Solar arc is the common public default; switch methods when comparing software.

A birth time is optional. Without it you still get the progressed planets and aspects; the angles and houses need an exact time.

What a Progressed Chart Shows

A secondary progressed chart advances your birth chart by the day for a year method: each day after you were born stands for one year of life. It tracks the slow inner shifts your natal chart only hints at, the progressed Moon, Sun, and Ascendant, and the tight aspects those progressed points make back to your natal placements as you age.

That last part is where most calculators stop short. Plenty of sites hand you a wheel of progressed positions and leave you there. The positions on their own are the easy half. The half that times something is the contact between a progressed planet and a natal one, and the year it perfects. This calculator runs both, and surfaces which natal points each progressed planet is touching now, how tight the orb is, and whether the aspect is still applying.

How Secondary Progressions Work

The rule is genuinely simple: count forward one day in the ephemeris for every year you have been alive. Born June 1, 1990, and want your chart at age 35? Read the sky on roughly July 6, 1990, thirty five days later, same birth time and place. Read as a chart, that sky is your progressed chart for 2025.

Augurine computes this on the same JPL grade ephemeris that drives every natal and transit calculation on the site, so the degrees here match the degrees everywhere else. Because each body moves at its own speed, secondary progressions are mostly a Sun, Moon, Mercury, Venus, and Mars technique. The outer planets barely move across a lifetime, so this tool keeps the inner planets in the foreground.

The Progressed Moon and Progressed Sun

If you only ever track one progressed body, track the Moon. It moves about twelve to thirteen degrees a year, roughly two and a half years in each sign, a full lap of the zodiac in about twenty seven to twenty eight years. Each sign reorganizes what feeds you emotionally. Sitting on top of the sign changes is the progressed lunation cycle, which runs new to new in about twenty nine to thirty years, so your first progressed New Moon lands near the Saturn return. For the sign by sign read, the dedicated progressed Moon calculator goes deeper.

The progressed Sun is the slow one that still matters. It moves just under a degree a year, so where you were born inside your Sun sign decides its timing. Born late in a sign, the progressed Sun changes sign in early childhood; born early, not until near thirty. It does not overwrite your natal Sun. It shifts the register you express it in. This calculator gives you the exact ingress dates instead of a vague window.

Progressed Angles and Progressed-to-Natal Aspects

The progressed planets need only a date. The progressed Ascendant, Midheaven, and houses need an exact birth time, so this tool shows them only when you provide one and hides them honestly when you do not. If your time is uncertain, start with the birth time rectification tool. The angles also do not move by the day for a year rule the way planets do, so you can pick solar arc, Naibod, or daily houses, the same choice you make in the progressed Ascendant calculator and in solar arc directions.

We hold progressed aspects to a one degree orb, far tighter than a transit. A progressed planet sits inside that orb for roughly two years, applying then separating, so an applying contact tells you the window is open now. Only the inner planets act as the progressed body, because only they move fast enough to form and dissolve an aspect in a meaningful span. Read these as slow, formative pressure, not calendar day events.

Progressions vs Transits

Transits are the real sky right now touching your fixed natal chart. Progressions are a symbolic clock, the sky of your first months of life replayed at a year per day. Progressions tell you which chapter you are in; transits tell you the day a door opens. Practitioners run them together.

To pair this with the transit side against your age, use the transits by age calculator, and the solar return calculator for the year ahead. For the traditional year ruler layer, progressions sit alongside annual profections.

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Frequently Asked Questions

What does a progressed chart tell you?

It tracks internal development rather than outer events. The progressed Moon shows your shifting emotional focus, the progressed Sun shows your evolving sense of purpose, and progressed-to-natal aspects mark the years a particular theme ripens. Read it as the chapter you are living through, not a forecast of specific incidents.

How do you calculate a progressed chart?

By the day for a year method: each day after birth equals one year of life. For your chart at age forty, you read the sky forty days after you were born, same time and place. This calculator uses the proportional form on a JPL ephemeris, so partial years land in the right spot.

Do I need an exact birth time for a progressed chart?

No, not for the planets. The progressed Sun, Moon, planets, and aspects compute without a birth time. Only the progressed Ascendant, Midheaven, and houses depend on the exact minute of birth, so the calculator shows those only when you enter an exact time and hides them otherwise instead of inventing them.

How accurate are progressed charts?

The planet positions are precise to arcminutes. The progressed Ascendant, Midheaven, and houses are only as accurate as your birth time, since they depend on Earth's rotation. With an exact time the angles hold up; without one, you still get reliable progressed planets and aspects.

What is the difference between progressions and transits?

Transits are the actual sky today aspecting your natal chart. Progressions are a symbolic clock, your birth month sky advanced at a year per day. Progressions move slowly and describe inner growth; transits move fast and time outer events. Most astrologers read both together.

When does my progressed Moon change signs?

About every two and a half years, since the progressed Moon moves roughly twelve to thirteen degrees a year. The exact dates depend on where your natal Moon sits within its sign. The calculator lists each upcoming progressed Moon ingress so you can see the next chapter before it arrives.

What is the progressed Sun?

Your natal Sun advanced by about one degree per year. It changes sign roughly once every thirty years, and the timing hinges on your birth degree: born late in a sign, it crosses over in early childhood; born early, not until your late twenties. Each ingress marks a shift in the tone of your core purpose, not a change of identity.

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