What Is a Progressed Composite Chart?
A progressed composite chart is the composite of two progressed charts: each partner’s birth chart is moved forward a day for each year of life to the same date, and the midpoints of those progressed planets describe where the relationship stands now.
A one-sentence definition
Your composite chart answers what the relationship is made of. The progressed composite answers a different question: which chapter is the relationship in at the moment, and what is it working on?
It is a timing technique. The natal composite stays fixed for as long as you are together; the progressed composite keeps moving, slowly for most points and quickly for the Moon.
How a progressed composite is built
Step 1: progress each birth chart
Secondary progressions use a simple key: one day of planetary motion after birth stands for one year of life. Someone who is 35.6 years old is read from the sky 35.6 days after their birth.
Step 2: take the midpoints
Both partners are progressed to the same calendar date, each by their own age. Then every pair of progressed planets is joined at its shorter midpoint, exactly as in an ordinary composite chart.
Step 3: houses and angles
The progressed Ascendant, Midheaven and house cusps of each partner are midpointed too, with the Midheaven taken as the short-arc midpoint. The result is a full chart with planets, angles and twelve houses.
What it is not
Not a composite that was progressed
A composite chart is arithmetic, not a moment in time, so it has no birth to progress. Astrodienst puts it plainly: its progressed composites are calculated “exactly the same as with the ordinary composite charts, except that the progressed charts of the partners are used instead of the natal charts.”
Some calculators describe the progressed composite as the composite “progressed” directly. That method does not exist; what they compute, if anything, is the same composite of two progressions.
Not progressed synastry
Progressed synastry compares one partner’s progressed chart with the other’s birth chart. That is two separate people; the progressed composite is the relationship read as one chart.
Composite or progressed composite: which to read now
Read both, in that order. The natal composite is the foundation, and the progressed composite matters through its contacts with it: when a moving point reaches a natal composite point, that part of the relationship becomes the topic.
If you have not looked at your composite yet, start with the composite chart calculator.
How to Use the Progressed Composite Calculator
Five steps take you from two birth dates to a dated relationship timeline. Nothing is stored and there is no account to make.
Step 1: Enter both birth dates, times and places
Add each partner’s birth date and place, and the birth time if you know it. If you don’t, switch on “I don’t know the time”: the planets are still calculated, and the angles and houses are left out.
Step 2: Pick the date to read
The chart is read for today unless you choose another day, such as the day you met or married.
Step 3: Read where the relationship is now
The Now card shows the progressed composite Sun, Moon and angles, the composite house the Moon is in, the phase of the progressed composite lunation cycle, and every contact with your natal composite within 1°.
In the example above, Alex and Sam are 35.6 and 34.2 on 18 October 2026. Their progressed composite Moon is in Taurus at 9°29′, in the 11th house of their composite, and three contacts are in orb: the Moon square composite Saturn (0.29°, past exact), the Midheaven sextile composite Venus (0.70°, exact on 16 July 2027) and the Ascendant sextile the composite Sun (0.88°).
Step 4: Scroll the ten-year timeline
Every event is dated: exact contacts with the dates they come within 1° and leave it, sign and house changes, New and Full Moons and midpoint flips, each with a reading.
Step 5: Check what moves with the method or the birth time
Switch the angles to MC from solar arc to see how far their dates move. Dates that depend on a missing birth time are marked as approximate.
Alex and Sam are the same couple as on Planets in Partner’s Houses, so you can follow one relationship across several tools.
How Fast Each Progressed Composite Point Moves
Speed decides what a progressed composite can time. We measured it for 400 couples, read for October 2026, and the points fall into four very different groups.
The Moon: about 13° a year
The progressed composite Moon moves a median 13.2° a year, between 12.1° and 14.2° for most couples. That is about 1.1° a month, so it changes sign every 2.3 years and goes all the way round in about 27.
The Sun and the angles: about 1° a year
The progressed composite Sun and Midheaven move 0.99° a year almost without exception. A degree a year means one sign takes about thirty years.
The Ascendant speeds up and slows down
The progressed composite Ascendant moves a median 0.91° a year, but anything from 0.68° to 2.07°. Away from the equator some signs rise quickly and others slowly, and the Ascendant inherits that.
Mercury, Venus and Mars: slow, sometimes backwards
The progressed composite Mercury moves a median 0.97° a year, Venus 1.15° and Mars 0.61°. When a partner’s progressed planet turns retrograde the midpoint can stall or go backwards: for 8.8% of couples the composite Mercury is moving backwards, for 1.5% Venus and for 0.8% Mars.
Jupiter to Pluto: effectively still
The outer planets move less than a quarter of a degree a year in a progressed composite. They are part of the chart, but they hardly ever time anything.
The Progressed Composite Moon: the Relationship’s Seasons
The Moon is the part of the progressed composite you will actually feel change. It describes the relationship’s emotional climate: what you both notice, worry about and want to look after.
About 2.3 years in each sign
At 13.2° a year the progressed composite Moon stays about 2.3 years in a sign. That makes its sign a season: long enough to shape a period of the relationship, short enough to end.
Across 400 couples, 46.5% will see their progressed composite Moon change sign within the next twelve months. The calculator gives the date to the day.
The Moon through the signs
Fire
In Aries, Leo or Sagittarius the relationship wants movement: starting things, celebrating, exploring. Closeness comes from doing, and boredom is the strain.
Earth
In Taurus, Virgo or Capricorn it wants things to work: a home, routines, shared plans. Closeness comes from reliability, and rigidity is the strain.
Air
In Gemini, Libra or Aquarius it runs on conversation, fairness and friendship. Closeness comes from understanding each other, and distance dressed up as reason is the strain.
Water
In Cancer, Scorpio or Pisces it turns inward: care, trust, depth. Closeness comes from feeling safe, and moods taken personally are the strain.
The Moon through the composite houses
The house of your natal composite that the progressed composite Moon walks through shows where its attention lands. It needs both birth times, because the houses do.
Angular houses
In the 1st, 4th, 7th or 10th the emotional focus is visible: the relationship itself, home, commitment or public life. These periods tend to be the ones people remember.
Succedent houses
In the 2nd, 5th, 8th or 11th it settles on what you build and share: money, pleasure, intimacy, friends and plans.
Cadent houses
In the 3rd, 6th, 9th or 12th it moves to everyday contact, routines, meaning and what stays private. Quieter, but often where adjustments happen.
Why most dates on your timeline are the Moon’s
Over ten years a couple gets a median 4.9 exact contacts a year with the natal composite, and 71.2% of them come from the progressed composite Moon. Without the Moon the rate drops to about 1.4 a year.
For Alex and Sam the Moon enters Gemini on 25 April 2028, reaches their composite Sun on 13 September 2028 and moves into Cancer on 11 July 2030.
The Progressed Composite New Moon and Full Moon
The progressed composite Moon and Sun form their own cycle, the progressed lunation cycle Dane Rudhyar described for birth charts. In a progressed composite it belongs to the relationship.
A 29.6-year cycle
The progressed composite Moon gains about 12.2° a year on the Sun, so one cycle from New Moon to New Moon takes about 29.6 years. Each of the eight phases lasts about 3.7 years.
The four turning points
New Moon
A new cycle starts, often before anyone can say what it is for. What you begin in the months around it tends to set the theme for a long time.
First Quarter
Plans meet the real world. Decisions made in this period commit you to a direction.
Full Moon
The cycle’s high point: what the relationship has grown into is visible, to the two of you and to the people around you.
Last Quarter
A turn of perspective: you review what the relationship is for and let go of what no longer fits.
Where your relationship is in the cycle
The turning points are about 7.4 years apart, so every couple meets at least one within ten years. The dial on the Now card shows where you are today.
In October 2026 Alex and Sam’s progressed composite Moon is 300° ahead of the Sun, in the balsamic phase that closes a cycle. Their next progressed composite New Moon is on 22 July 2031.
When the Progressed Composite Sun Changes Sign
This is the question people search for and nobody answers: when does the progressed composite Sun change sign? Every page that comes up talks about the progressed Sun of one person.
One couple in three within ten years
Across 400 couples, 33.3% will see their progressed composite Sun change sign within ten years. The median wait is 14.9 years, because the Sun moves about 1° a year and a sign is 30°.
What a new Sun sign changes
The progressed composite Sun is the relationship’s sense of purpose in this period. A new sign shifts what the two of you are building toward, and because the Sun stays about thirty years, the shift is gradual.
What it does not change
It does not replace the relationship you have. Your natal composite Sun is still where it was; the progressed one adds a new emphasis on top of it.
Progressed Composite to Natal Composite: the Exact Contacts
A contact is a progressed composite point forming an aspect with a point of your natal composite. The natal point says which part of the relationship is involved; the moving point and the aspect say how.
The 1° orb, and why it is tight
Progressions are read with small orbs, 1° either side of exact. A chart made of two charts has twice the points, and Astrodienst’s advice for such charts is that orbs “should be reduced accordingly.”
Some tools show contacts up to 3° away. That is a display filter; the calculator here counts 1° and dates the moment of exactness.
How long a contact lasts
The Moon: about two months
At about 1.1° a month, the progressed composite Moon stays within 1° of a point for about two months. Alex and Sam’s Moon square their composite Saturn holds from 13 September to 6 November 2026.
The Sun and the angles: about two years
At about 1° a year, a contact of the Sun, the Midheaven or the Ascendant lasts about two years. Their Midheaven sextile composite Venus is in orb from 23 June 2026 to 5 August 2028.
Conjunction, flowing or tense
Conjunction
The moving point merges with the natal one: that theme becomes the focus for as long as the contact lasts.
Trine and sextile
The theme is supported. Effort around it goes further than usual, and it is a good time to lean on each other there.
Square and opposition
The theme is under pressure and asks for adjustment. Handled together, tense contacts are often where a relationship grows; they are a load to share, not a warning.
Which contacts deserve attention
The slow ones. A contact of the Sun, the Midheaven or the Ascendant comes about once a year or less and lasts about two years, so it marks a chapter. The Moon’s contacts mark the seasons inside it.
Progressions describe years; for this week, use the couple horoscope, and for the coming twelve months the Relationship Year Ahead.
The Progressed Composite Ascendant and Midheaven
The angles describe how the relationship meets the world (the Ascendant) and where it is heading together (the Midheaven). They are also the points that depend most on how the progression is done.
About a degree a year
The progressed composite Midheaven moves 0.99° a year and the Ascendant a median 0.91°. Their contacts and sign changes are rare and long, like the Sun’s.
Two ways to progress the angles
Naibod in right ascension
The sidereal time of birth advances by the Sun’s mean daily motion, 0.98564733° for each year of age, and the angles and houses are recalculated at the birth latitude. Astrodienst describes it as “the number of years is multiplied by the mean daily motion of the Sun,” and it is the default at astro.com and Astro-Seek.
MC from solar arc
The Midheaven moves by exactly as much as the progressed Sun has moved since birth, and the Ascendant follows from it. Solar Fire calls the solar-arc method possibly the most commonly used today, and the calculator offers it as a switch.
How far apart the two methods land
Across 299 couples the two methods put the progressed composite Midheaven a median 1.12° apart, about 13.5 months of timing. For one couple in ten the gap is 3.27° or more, more than three years.
Why the birth time matters most here
Fifteen minutes on one partner’s birth time moves the composite Midheaven 1.88° and the Ascendant 1.63°, about two years of timing. An hour moves them about seven years.
When a Progressed Composite Point Jumps to the Opposite Sign
Sometimes a progressed composite point suddenly lands in the opposite sign. Nothing happened in the sky; it is how midpoints work.
Why a midpoint can flip
A composite takes the shorter arc between the two partners’ positions. When the two progressed positions pass exactly opposite each other, the shorter arc switches sides and the midpoint jumps 180°.
How often it happens
Within ten years 5% of couples meet a flip, most often of the Moon, sometimes of Mercury or Mars. A calculator that shows one date at a time simply shows the new sign, with nothing to say why.
How this calculator shows it
The timeline marks it as a flip, not as a new sign, and the line map draws it as a dashed jump. Read the sign before and the sign after as two ends of the same axis.
Progressed Composite, Composite or Davison?
Three relationship charts answer three different questions. They work best side by side.
Composite: the foundation
The midpoints of the two birth charts. It does not move, and it is what every progressed composite contact is measured against.
Progressed composite: the current chapter
The midpoints of the two progressed charts. It moves, it can be dated, and it is the one that answers “where are we now?”
Davison and progressed Davison
The Davison chart is a real moment halfway between the two births, at the place halfway between them, so it can be progressed like any birth chart. The progressed Davison equals the Davison of the two progressed moments, with the couple’s average age as the key.
Progressed synastry is something else
Comparing one partner’s progressed chart with the other’s birth chart is progressed synastry: two people, not one relationship. Your synastry chart is where that comparison starts.
Birth Time, Accuracy and Why Calculators Disagree
A progressed composite combines two charts, two ages and a method for the angles. Each of them can move a date.
What works without a birth time
Without a time the partner is cast at local noon. The planets still stand, but the progressed Moon can be up to 6.6° off, so the composite Moon’s dates move by up to about three months.
The angles and the composite houses need both birth times, so without them the calculator leaves them out instead of guessing.
A day for a year: which year
The calculator uses the tropical year, 365.24219907 days per progressed day, Astro-Seek’s default. A Julian year of 365.25 days moves the progressed Moon by about 0.7′ at age 36; a flat 365 days moves it by 20′.
Why two calculators can differ
The angle method
Naibod in right ascension and MC from solar arc put the progressed composite angles a median 1.12° apart. A tool that does not say which it uses can disagree with this one by a year or more.
The house method
The composite houses here are the midpoints of the two partners’ Placidus cusps, with the Midheaven taken as the short-arc midpoint. A tool that derives the houses from a reference place gives different cusps.
The orb
A 3° display filter shows three times as many contacts as a 1° orb. The dates of exactness are the same.
Progressed Composite Myths
“A tense contact means a break-up”
Every couple gets a median 4.9 exact contacts a year, and many of them are squares and oppositions. A tense progressed composite contact names what the relationship is working on, not how it ends.
“It means nothing before you met”
It can be calculated from both births onwards, and it reads best for the years you have been together. Looking back at the year you met is one of the most common uses.
“The progressed composite replaces the composite”
It never does. The progressed composite only has meaning through its contacts with the natal composite.
“A new Sun sign is a new relationship”
One couple in three sees the progressed composite Sun change sign within ten years. It adds an emphasis that grows over decades; the relationship stays the one you have.
Progressed Composite FAQ
›What is a progressed composite chart?
It is the composite of two progressed charts. Each partner’s birth chart is moved forward a day for every year of life to the same date, and the midpoints of those progressed planets describe where the relationship stands now. The natal composite describes what the relationship is made of.
›How is a progressed composite calculated?
Each partner is progressed to the same date, one day of planetary motion for each tropical year of 365.24219907 days. The planets are joined at their short-arc midpoints and the houses by the midpoint method, with the Midheaven taken as the short-arc midpoint. The angles move by Naibod in right ascension, the default at astro.com and Astro-Seek, and you can switch to MC from solar arc.
›Should I read the composite or the progressed composite?
Both. The composite is the relationship’s lasting foundation, and the progressed composite’s contacts with it show which part of that foundation is active now. A progressed composite read on its own has nothing to be measured against.
›How long does a progressed composite phase last?
The progressed composite Moon spends about 2.3 years in each sign, and one of its contacts stays within 1° for about two months. Contacts of the Sun and the angles last about two years, and the turning points of the progressed composite lunation cycle are about 7.4 years apart.
›When does the progressed composite Sun change sign?
The progressed composite Sun moves about 1° a year, so it stays in a sign for about thirty years. Across 400 couples, 33.3% will see it change sign within ten years, and the median wait is 14.9 years. This calculator gives the exact date.
›Does a progressed composite mean anything before we met?
It can be calculated from both births onwards, but it describes the relationship, so it reads best from the time you have been together. Looking back at the progressed composite for the year you met, moved in or married is a common use.
›Can a progressed composite predict a break-up or a wedding?
No. It shows which part of the relationship is active and what it is working on. Every couple gets about 4.9 exact contacts a year, tense ones included, so a date is a window to pay attention to, not a verdict.
›Do we need exact birth times?
Not for the planets: 15 minutes on one partner’s birth time moves the composite Moon only 0.07°. It moves the composite Ascendant and Midheaven by about 1.9°, which is about two years of timing. Without a time the planets still stand, Moon dates move by up to about three months, and there are no angles or houses.
›Which method does this calculator use for the angles?
Naibod in right ascension: the sidereal time of birth advances 0.98564733° for each year of age, and the Ascendant and house cusps are recalculated at the birth latitude. This is the default at astro.com and Astro-Seek. You can switch to MC from solar arc; the two land a median 1.1° apart, about 13.5 months of timing.
›Why did the progressed composite Moon jump to the opposite sign?
When the two partners’ progressed Moons stand exactly opposite each other, their short-arc midpoint jumps 180°. It is not a change of sign, and this calculator marks it as a flip. Within ten years it happens to about 5% of couples.
Related Tools
The natal composite your progressed composite is read against.
The relationship as a real moment in time and place.
Both birth charts side by side with every aspect between you.
This week’s transits to the two of you, from both charts.
Every planet of one chart in the other’s twelve houses, both ways.
Ask one question about the two of you and get an answer built from your charts.