Moon Phase Soulmate

Moon phase compatibility chart

This moon phase compatibility chart covers all 36 combinations of two birth moon phases. Pick a row and a column below to jump to that pairing, or scroll to read them in order. Already know both birth dates? The soulmate calculator on the home page works out the phases for you.

Each cell links to that pairing's write-up. Order does not affect the result, so only the lower half of the 8×8 grid is filled.
Phase NM WC FQ WG FM WG LQ WC
New Moon New Moon and New Moon: Conjunct
Waxing Crescent Waxing Crescent and New Moon: Sextile Waxing Crescent and Waxing Crescent: Conjunct
First Quarter First Quarter and New Moon: Square First Quarter and Waxing Crescent: Sextile First Quarter and First Quarter: Conjunct
Waxing Gibbous Waxing Gibbous and New Moon: Trine Waxing Gibbous and Waxing Crescent: Square Waxing Gibbous and First Quarter: Sextile Waxing Gibbous and Waxing Gibbous: Conjunct
Full Moon Full Moon and New Moon: Opposite Full Moon and Waxing Crescent: Trine Full Moon and First Quarter: Square Full Moon and Waxing Gibbous: Sextile Full Moon and Full Moon: Conjunct
Waning Gibbous Waning Gibbous and New Moon: Trine Waning Gibbous and Waxing Crescent: Opposite Waning Gibbous and First Quarter: Trine Waning Gibbous and Waxing Gibbous: Square Waning Gibbous and Full Moon: Sextile Waning Gibbous and Waning Gibbous: Conjunct
Last Quarter Last Quarter and New Moon: Square Last Quarter and Waxing Crescent: Trine Last Quarter and First Quarter: Opposite Last Quarter and Waxing Gibbous: Trine Last Quarter and Full Moon: Square Last Quarter and Waning Gibbous: Sextile Last Quarter and Last Quarter: Conjunct
Waning Crescent Waning Crescent and New Moon: Sextile Waning Crescent and Waxing Crescent: Square Waning Crescent and First Quarter: Trine Waning Crescent and Waxing Gibbous: Opposite Waning Crescent and Full Moon: Trine Waning Crescent and Waning Gibbous: Square Waning Crescent and Last Quarter: Sextile Waning Crescent and Waning Crescent: Conjunct

The five separations, and what each one means

Every pairing in the chart belongs to exactly one of these. The eight phases sit 45 degrees apart on the lunation wheel, so any two of them are 0, 45, 90, 135 or 180 degrees apart, and that separation is what the pairing is named for. The depth is here, in five explanations; the individual cells below add what is specific to each combination.

Conjunct

0° apart · 0 phase steps

A conjunct pairing puts both people at the same point of the lunation, which means they read a situation the same way before either has said anything. The advantage is translation cost: there is almost none, and things other couples have to negotiate are simply assumed. The cost is that neither partner is positioned to catch what the other misses, because they miss the same things. Two New Moons both start and neither finishes; two Waxing Gibbous partners both refine and neither ships. Same-phase couples tend to rely more than others on an outside corrective, such as a friend, an editor, or a deadline someone else set. The pairing cannot generate that corrective on its own.

Sextile

45° apart · 1 phase steps

A sextile pairing sits one phase apart, so each person is standing exactly where the other has just been or is about to arrive. That produces a relay rather than a collaboration: work gets handed over at a natural seam, and both recognise the seam without discussing it. The friction is asymmetric. The partner further along finds the other slow to catch up, and the partner behind feels hurried past a stage they have not finished. Because the gap is a single step, this pairing rarely produces dramatic conflict. It produces a low, persistent difference in urgency that is easy to ignore until it is not.

Square

90° apart · 2 phase steps

A square pairing sits two phases apart, a quarter of the way around the cycle, and it is the arrangement most often mistaken for incompatibility. The disagreement is almost never about direction or values, since squares usually want the same outcome. It is about tempo, and about what counts as ready. One partner moves when there is enough information to act; the other moves when the picture is complete. Each reads the other as the problem: reckless on one side, paralysed on the other. Squares work when both stop treating a difference in pace as a difference in seriousness, and they do cover more ground than smoother pairings, because the two speeds between them handle situations neither would manage alone.

Trine

135° apart · 3 phase steps

A trine pairing sits three phases apart, far enough that neither person duplicates the other and close enough that the difference never registers as opposition. This is the least effortful of the five arrangements: the two cover different parts of the cycle, so between them they handle more than either could alone, and the handovers need little explanation. What a trine lacks is pressure. Nothing in the pairing forces either partner to change, which is comfortable for years and can leave both slightly under-stretched. Its characteristic failure is not conflict but drift.

Opposite

180° apart · 4 phase steps

An opposite pairing sits directly across the wheel, one moon filling as the other empties, and it is the arrangement the moon phase soulmate idea was built around. Each partner holds the perspective the other structurally lacks, which is why the pull is strong early: being seen from the far side of the cycle is a genuinely new experience. It is why the pairing is tiring without maintenance, since the same completeness that attracts is the thing neither person can switch off. Oppositions rarely fail from lack of interest. They fail from the accumulated cost of two people who never stop supplying each other with the view they did not ask for.

Some readers use a twin-flame framing instead of a soulmate one, which narrows the interesting cases to exact opposites and exact matches. See how that framing differs.

All 36 pairings

Each entry names both phases, the separation they form, what the combination tends to look like, and the friction specific to it.

New Moon and New Moon

Conjunct · 0° apart

Two New Moon people start constantly and finish rarely. Neither one supplies the follow-through the other is missing, so the relationship generates plans at a rate that outstrips anyone’s capacity to carry them out. What holds it together is that neither partner treats the other’s half-abandoned project as a character flaw. The practical fix is boring and works: one shared list, and nothing new added until something old is closed.

Watch out for: the pile-up of unfinished projects that neither of you will name as a problem.

New Moon in depth · New Moon phase page · What conjunct means

New Moon and Waxing Crescent

Sextile · 45° apart

The New Moon partner has the idea and the Waxing Crescent partner supplies the push that keeps it alive past the first obstacle. That is a genuinely useful division of labour, and it is why the Crescent partner ends up doing more of the grinding work. Friction shows up when the New Moon person starts something else before the first thing has cleared its resistance. Naming who is responsible for finishing, out loud, resolves most of it.

Watch out for: the Crescent partner quietly absorbing all the follow-through until it curdles into resentment.

New Moon traits in full · Waxing Crescent personality reading · What sextile means

New Moon and First Quarter

Square · 90° apart

A New Moon and a First Quarter both move first and think later, which is why they either accelerate each other or collide. The New Moon partner acts on instinct; the First Quarter partner acts on a decision, and expects the decision to be honoured afterwards. Arguments in this pairing are rarely about direction and almost always about whether something was actually agreed. Writing down what was decided sounds unromantic and defuses the recurring fight.

Watch out for: two people who both moved first and now disagree about what was actually agreed.

New Moon phase page · First Quarter in depth · What square means

New Moon and Waxing Gibbous

Trine · 135° apart

The Waxing Gibbous partner improves what the New Moon partner starts, which is the most productive version of this pairing and the most irritating one. The New Moon person hears refinement as criticism of the original impulse; the Gibbous person cannot leave an unfinished thing alone. Neither reading is wrong, and the pair works best when the improving happens after the starting rather than during it. Couples in this pairing tend to describe their best work as jointly owned and their worst arguments as edits.

Watch out for: edits arriving before the idea has had time to exist.

New Moon personality reading · Waxing Gibbous traits in full · What trine means

New Moon and Full Moon

Opposite · 180° apart

New Moon and Full Moon sit directly across the lunation wheel, dark against fully lit, and the contrast is the whole dynamic. The New Moon partner is self-directed and acts before the picture is complete; the Full Moon partner sees the complete picture and works out who they are through the other person. Each one holds the perspective the other structurally lacks, which is why this pairing is magnetic early and exhausting when unmanaged. It tends to survive on the Full Moon partner’s willingness to let a plan stay unfinished, and the New Moon partner’s willingness to be looked at closely.

Watch out for: the Full Moon partner narrating the New Moon partner’s motives back to them as settled fact.

New Moon in depth · Full Moon phase page · What opposite means

New Moon and Waning Gibbous

Trine · 135° apart

The Waning Gibbous partner explains, and the New Moon partner was not asking. That is the running joke and the running problem of this pairing, and once both people find it funny the rest tends to work. The Disseminating partner brings context and hard-won conclusions to situations the New Moon partner would rather walk into cold. Three phases apart is enough distance that the difference reads as useful range instead of a fight about whose turn it is.

Watch out for: advice delivered as though the question had been asked.

New Moon traits in full · Waning Gibbous personality reading · What trine means

New Moon and Last Quarter

Square · 90° apart

A New Moon partner changes course visibly; a Last Quarter partner changes their mind privately and announces it much later. The mismatch is about disclosure, not commitment, and it is the reason this pairing produces the specific complaint of never having been told. The New Moon person experiences the delayed announcement as a reversal out of nowhere. Regular, low-stakes check-ins solve more here than any single big conversation.

Watch out for: a reversal that was months in the making landing as a bombshell.

New Moon phase page · Last Quarter in depth · What square means

New Moon and Waning Crescent

Sextile · 45° apart

The Waning Crescent partner is closing a chapter while the New Moon partner is opening one, and they are adjacent on the wheel, which means they are closer than the descriptions suggest. Both are working at the seam of the cycle where one thing ends and the next has not taken shape. The Balsamic partner is usually the one who knows when something is over, and the New Moon partner is the one willing to move before the evidence is in. That combination handles transitions such as moves, career changes and endings unusually well.

Watch out for: both of you being ready to leave and neither of you saying so first.

New Moon personality reading · Waning Crescent traits in full · What sextile means

Waxing Crescent and Waxing Crescent

Conjunct · 0° apart

Two Waxing Crescent people share a stubbornness that other phases find hard to be around. Both are pushing against something, and if they are pushing against the same thing the partnership is formidable. If they are pushing against each other, neither concedes, because conceding is the one move this type does not have. The pairing does best with a clearly external obstacle to work on together.

Watch out for: a standoff neither of you can climb down from without an outside referee.

Waxing Crescent in depth · Waxing Crescent phase page · What conjunct means

Waxing Crescent and First Quarter

Sextile · 45° apart

Waxing Crescent and First Quarter are consecutive phases and both are built for effort, so this pair gets things done. The difference is that the Crescent partner grinds and the First Quarter partner cuts, and the Crescent partner can experience a clean decisive break as wasteful. Weeks of accumulated work get discarded in a single First Quarter decision, and that is the recurring wound. Agreeing on a point of no return in advance keeps the discarding from feeling personal.

Watch out for: weeks of accumulated work discarded in a single clean decision.

Waxing Crescent traits in full · First Quarter personality reading · What sextile means

Waxing Crescent and Waxing Gibbous

Square · 90° apart

The Crescent partner wants the thing to exist and the Gibbous partner wants it to be right, which is a square: same direction, different tempo. Two phases apart means the disagreements land on timing almost every time. The Crescent partner ships early and fixes later; the Gibbous partner refuses to show anything unfinished. Neither instinct is wrong, and the pairing improves the moment they stop treating tempo as a values disagreement.

Watch out for: a launch date that keeps moving because “ready” means two different things.

Waxing Crescent phase page · Waxing Gibbous in depth · What square means

Waxing Crescent and Full Moon

Trine · 135° apart

The Full Moon partner brings perspective to a Waxing Crescent partner who is usually too close to the work to have any. Three phases apart gives enough separation that this reads as relief rather than interference. The Crescent partner supplies drive; the Full Moon partner supplies the read on other people that the Crescent partner tends to skip while pushing. The pairing tends to be socially effective in a way neither person manages alone.

Watch out for: the Crescent partner treating perspective as an interruption.

Waxing Crescent personality reading · Full Moon traits in full · What trine means

Waxing Crescent and Waning Gibbous

Opposite · 180° apart

Waxing Crescent and Waning Gibbous sit opposite each other: one is fighting to establish something, the other is handing on what has already been established. The Crescent partner is in the middle of the struggle and the Disseminating partner is past it and talking about it, which can feel like being coached by someone who has already finished the race. Handled well, the Disseminating partner shortens the Crescent partner’s learning curve considerably. Handled badly, the advice arrives as commentary on effort that is still underway.

Watch out for: coaching delivered to someone still mid-race.

Waxing Crescent in depth · Waning Gibbous phase page · What opposite means

Waxing Crescent and Last Quarter

Trine · 135° apart

A Waxing Crescent partner builds momentum and a Last Quarter partner questions the premise the momentum is built on. Three phases apart, that questioning tends to be well-timed rather than obstructive, catching the wrong project before too much has been sunk into it. The Crescent partner has to tolerate having the foundation examined mid-build. In return they get a partner who will not let them win an argument with reality through sheer persistence.

Watch out for: the foundation being questioned at the least useful moment in the build.

Waxing Crescent traits in full · Last Quarter personality reading · What trine means

Waxing Crescent and Waning Crescent

Square · 90° apart

The Crescent partner is accumulating effort and the Balsamic partner is letting things go, two phases apart and pulling in visibly different directions. The Waning Crescent partner will suggest abandoning something the Waxing Crescent partner has invested months in, and will usually be right about whether it is finished. The Waxing Crescent partner reads that as giving up. This pairing works when both accept that knowing when to stop and refusing to stop are separate skills, and the household needs both.

Watch out for: “let it go” and “keep going” hardening into an argument about character.

Waxing Crescent phase page · Waning Crescent in depth · What square means

First Quarter and First Quarter

Conjunct · 0° apart

Two First Quarter people make decisions quickly, publicly, and without much interest in revisiting them. Nothing drifts in this relationship, which is a real advantage, and nothing gets reconsidered either. When both partners break with the same arrangement at the same time the pair moves faster than anyone around them. When they break in opposite directions, neither has a natural mechanism for backing down.

Watch out for: two decisions made in opposite directions with no mechanism for reversing either.

First Quarter personality reading · First Quarter traits in full · What conjunct means

First Quarter and Waxing Gibbous

Sextile · 45° apart

The First Quarter partner decides and the Waxing Gibbous partner refines the decision into something that works, consecutive phases doing consecutive jobs. The Gibbous partner will keep adjusting after the First Quarter partner considers the matter closed, and the First Quarter partner reads reopening as second-guessing. Neither is being difficult; the phases are literally sequential steps. Letting the refinement happen without reframing the original call keeps this pairing productive.

Watch out for: refinement being heard as the reopening of a settled call.

First Quarter in depth · Waxing Gibbous phase page · What sextile means

First Quarter and Full Moon

Square · 90° apart

A First Quarter partner acts and a Full Moon partner watches the effect on everyone in the room, which is a square and a useful one. The First Quarter partner makes the necessary break; the Full Moon partner names the cost to the people involved, usually within an hour. That timing is the friction, since the cost arrives before the decision has been given room to work. The pairing is at its best when the Full Moon partner’s read is treated as data rather than as a verdict on the decision.

Watch out for: the human cost being tallied before the decision has had room to work.

First Quarter traits in full · Full Moon personality reading · What square means

First Quarter and Waning Gibbous

Trine · 135° apart

The First Quarter partner acts and the Waning Gibbous partner turns what happened into an account of what happened, three phases apart and complementary. The Disseminating partner is the one who explains the couple to other people, and generally explains them well. The First Quarter partner supplies material by making choices other people hesitate over. Friction is limited and usually amounts to the First Quarter partner objecting to how the story is told.

Watch out for: the story of what happened drifting from what happened.

First Quarter phase page · Waning Gibbous in depth · What trine means

First Quarter and Last Quarter

Opposite · 180° apart

First Quarter and Last Quarter are the two crisis points of the lunation cycle, sitting directly opposite each other. The First Quarter partner has crises in action and the Last Quarter partner has them in belief, so both people are used to upheaval but experience it in incompatible registers. The Last Quarter partner rethinks quietly and thoroughly; the First Quarter partner wants the conclusion now so it can be acted on. This pairing has real depth and needs explicit patience about processing time more than almost any other.

Watch out for: pressure applied to a rethink that has not finished running.

First Quarter personality reading · Last Quarter traits in full · What opposite means

First Quarter and Waning Crescent

Trine · 135° apart

A First Quarter partner starts the break and a Waning Crescent partner completes the release, three phases apart on the same underlying job. The First Quarter partner ends things decisively but does not always finish grieving them; the Balsamic partner does the second half without being asked. What the Waning Crescent partner needs in return is time that the First Quarter partner is not naturally inclined to give. The pairing handles loss and transition better than it handles ordinary weeks.

Watch out for: an ending declared closed while one of you is still inside it.

First Quarter in depth · Waning Crescent phase page · What trine means

Waxing Gibbous and Waxing Gibbous

Conjunct · 0° apart

Two Waxing Gibbous people will improve a thing indefinitely. Standards are high, the work is genuinely good, and nothing gets declared finished without an external deadline. Each partner validates the other’s revision instinct, which removes the only brake either of them had. Borrowing someone else’s deadline is the most effective intervention available to this pairing.

Watch out for: a project that never ships because neither of you will call it finished.

Waxing Gibbous traits in full · Waxing Gibbous personality reading · What conjunct means

Waxing Gibbous and Full Moon

Sextile · 45° apart

The Gibbous partner perfects and the Full Moon partner reveals, consecutive phases where the second one exposes the first one’s work before it is ready. That is the entire dynamic. The Full Moon partner shows things to people, invites people over and says the true thing at dinner; the Gibbous partner wanted another week. Once the Gibbous partner accepts that nothing will ever feel finished, the Full Moon partner’s willingness to go public is the more valuable of the two instincts.

Watch out for: work shown to people a week before it was ready to be seen.

Waxing Gibbous phase page · Full Moon in depth · What sextile means

Waxing Gibbous and Waning Gibbous

Square · 90° apart

Both partners are gibbous, both are working with a nearly complete picture, and they are two phases apart on opposite sides of the Full Moon. The Waxing Gibbous partner is refining privately and the Waning Gibbous partner is broadcasting publicly, so the argument is about when something is ready to be talked about. The Disseminating partner shares a conclusion the Waxing partner still considers a draft. Agreeing on what is public and what is not resolves a surprising share of this pair’s conflict.

Watch out for: a draft repeated in public as though it were a conclusion.

Waxing Gibbous personality reading · Waning Gibbous traits in full · What square means

Waxing Gibbous and Last Quarter

Trine · 135° apart

The Waxing Gibbous partner improves the method and the Last Quarter partner asks whether the method should exist, three phases apart with enough room for both questions. That combination catches errors early, since one partner checks execution and the other checks premise. The Gibbous partner can find the premise question destabilising in the middle of careful work. Sequencing it, premise first and refinement after, turns the friction into a process.

Watch out for: the premise question landing mid-execution and stalling both of you.

Waxing Gibbous in depth · Last Quarter phase page · What trine means

Waxing Gibbous and Waning Crescent

Opposite · 180° apart

Waxing Gibbous and Waning Crescent sit opposite each other, one perfecting and one releasing. The Gibbous partner invests in getting something exactly right and the Balsamic partner is comfortable letting it go unfinished, which lands as carelessness on one side and as attachment on the other. Neither reading is generous or accurate. The pairing tends to teach the Gibbous partner that most things do not need to be finished and the Balsamic partner that some do.

Watch out for: care being read as fuss, and detachment as indifference.

Waxing Gibbous traits in full · Waning Crescent personality reading · What opposite means

Full Moon and Full Moon

Conjunct · 0° apart

Two Full Moon people see each other completely, which is the appeal and the difficulty. Nothing goes unnoticed and very little goes unsaid, so this pairing has no hiding places and no accumulated resentment either. Both partners define themselves through relationship, so the relationship carries more weight than either would carry alone. The failure mode is mutual over-observation, where being watched closely stops feeling like being known.

Watch out for: observation curdling into surveillance.

Full Moon phase page · Full Moon in depth · What conjunct means

Full Moon and Waning Gibbous

Sextile · 45° apart

The Full Moon partner sees it and the Waning Gibbous partner explains it, consecutive phases running the same insight through two stages. Socially this pair is formidable, since one reads the room and the other addresses it. The private version is less balanced, because the Disseminating partner keeps explaining after the Full Moon partner has already understood. Fewer explanations at home is a small adjustment that this pairing feels immediately.

Watch out for: explanations continuing well past the point of understanding.

Full Moon personality reading · Waning Gibbous traits in full · What sextile means

Full Moon and Last Quarter

Square · 90° apart

A Full Moon partner processes out loud and a Last Quarter partner processes internally, two phases apart and mismatched on exactly that. The Full Moon partner asks what is wrong; the Last Quarter partner does not know yet, and will not know for a week or two. Pressing for an answer before the reorientation is complete produces a false one. This is a square that is manageable once the Full Moon partner stops reading silence as withholding.

Watch out for: a question pressed until it produces an answer that is not yet true.

Full Moon in depth · Last Quarter phase page · What square means

Full Moon and Waning Crescent

Trine · 135° apart

The Full Moon partner illuminates and the Waning Crescent partner releases, three phases apart with an unusual amount of common ground. Both are oriented toward endings, one by seeing clearly what a situation actually is and the other by accepting when it is over. Conversations in this pairing tend to arrive at the point faster than either partner manages elsewhere. The risk is that clarity plus willingness to let go makes ending things a little too easy.

Watch out for: how easy the two of you find it to end things.

Full Moon traits in full · Waning Crescent personality reading · What trine means

Waning Gibbous and Waning Gibbous

Conjunct · 0° apart

Two Waning Gibbous people talk, teach and explain, mostly to other people and often about each other. This is the most socially outward pairing on the wheel, and it accumulates friends, students and dinner guests. What it accumulates less of is private processing, since both partners are more practised at articulating a conclusion than at sitting with an unresolved one. Protecting time where nothing is being explained to anyone is the useful discipline here.

Watch out for: a life narrated to other people and never processed between you.

Waning Gibbous phase page · Waning Gibbous in depth · What conjunct means

Waning Gibbous and Last Quarter

Sextile · 45° apart

The Disseminating partner teaches what they know and the Last Quarter partner is in the middle of dismantling what they know, consecutive phases and slightly out of step. The Waning Gibbous partner offers a settled conclusion to someone who has just made their conclusions unsettled. It can be exactly the wrong moment or exactly the right one, with little in between. The Last Quarter partner benefits most when the sharing is offered rather than delivered.

Watch out for: certainty offered to someone who has just lost theirs.

Waning Gibbous personality reading · Last Quarter traits in full · What sextile means

Waning Gibbous and Waning Crescent

Square · 90° apart

A Waning Gibbous partner wants to pass things on and a Waning Crescent partner wants to put things down, two phases apart and pulling on the same object. The Disseminating partner keeps the story of what happened alive; the Balsamic partner would rather close it. Anniversaries, old friendships and unfinished conversations are where this shows up. The pairing works when they agree which things get retold and which get retired.

Watch out for: the same story retold long after one of you has closed it.

Waning Gibbous in depth · Waning Crescent phase page · What square means

Last Quarter and Last Quarter

Conjunct · 0° apart

Two Last Quarter people reconsider everything, thoroughly, and rarely at the same time. When their reorientations line up the pair changes its whole life in a season. When they do not, one partner is rebuilding their position while the other has just finished rebuilding theirs and wants stability. Both are patient with the process itself, which is the shared advantage no other pairing has here.

Watch out for: two simultaneous rebuilds leaving nothing steady to stand on.

Last Quarter traits in full · Last Quarter personality reading · What conjunct means

Last Quarter and Waning Crescent

Sextile · 45° apart

The Last Quarter partner dismantles a belief and the Waning Crescent partner lets the last of it go, consecutive phases at the closing end of the cycle. This is the quietest pairing on the wheel and often the most private, with a lot happening that neither partner narrates. What it lacks is anyone pushing for the next thing to begin, so plans can stay indefinitely hypothetical. An external commitment with a date on it does more for this pair than any amount of discussion.

Watch out for: a shared future that stays hypothetical for years.

Last Quarter phase page · Waning Crescent in depth · What sextile means

Waning Crescent and Waning Crescent

Conjunct · 0° apart

Two Waning Crescent people release easily and start slowly. There is very little clinging in this relationship, which makes it unusually free of the resentment that builds up elsewhere, and very little urgency either. Both partners sense where things are heading and neither is inclined to force the pace. The pairing needs at least one concrete commitment on a calendar to keep a shared future from staying permanently theoretical.

Watch out for: a relationship that never quite starts because neither of you pushes.

Waning Crescent personality reading · Waning Crescent traits in full · What conjunct means

Every phase has its own page with personality detail and illumination data, and the guides directory goes further into what the pairings claim. Start from the eight phase descriptions.