Relationship charts

Synastry chart calculator

Compare the planets in two birth charts by exact angular distance, then read the contacts and directional house overlays.

Person 1
Place coordinates

Coordinates locate the horizon and houses. The named time zone resolves the local clock.

Person 2
Place coordinates

Coordinates locate the horizon and houses. The named time zone resolves the local clock.

Zodiac, houses and aspect settings

Person 1’s planet is listed first; Person 2’s planet or house is listed second. The reverse direction has its own reading.

Example: Synastry chart

Person 1: Natal chart: Sun in Taurus, Moon in Capricorn, Leo rising. Person 2: Natal chart: Sun in Leo, Moon in Taurus, Aquarius rising.

Tropical zodiac; whole-sign houses; 1× aspect orbs.

AriTauGemCanLeoVirLibScoSagCapAquPis1234567891012345678910

Person 1

Natal chart: Sun in Taurus, Moon in Capricorn, Leo rising.

Positions at the entered time
PointPositionMotionPossible signs
SunTaurus 24° 17′DirectTaurus
MoonCapricorn 25° 52′DirectCapricorn
MercuryTaurus 8° 01′RetrogradeTaurus
VenusAries 12° 41′DirectAries
MarsPisces 18° 15′DirectPisces
JupiterCancer 9° 31′DirectCancer
SaturnCapricorn 25° 15′RetrogradeCapricorn
UranusCapricorn 9° 11′RetrogradeCapricorn
NeptuneCapricorn 14° 21′RetrogradeCapricorn
PlutoScorpio 16° 10′RetrogradeScorpio
Mean north nodeAquarius 11° 20′RetrogradeAquarius
True north nodeAquarius 10° 15′RetrogradeAquarius
Mean Black MoonScorpio 21° 25′DirectScorpio
Osculating Black MoonSagittarius 6° 45′DirectSagittarius
CeresCancer 15° 08′DirectCancer
PallasTaurus 28° 23′DirectTaurus
JunoScorpio 15° 39′RetrogradeScorpio
VestaAries 21° 35′DirectAries
PsycheTaurus 1° 16′DirectTaurus
ErosAries 13° 53′DirectAries
ChironCancer 13° 12′DirectCancer
Asteroid LilithAquarius 9° 04′DirectAquarius
AscendantLeo 7° 31′—Leo
DescendantAquarius 7° 31′—Aquarius
MidheavenAries 16° 31′—Aries
ICLibra 16° 31′—Libra
VertexSagittarius 25° 31′—Sagittarius

Person 2

Natal chart: Sun in Leo, Moon in Taurus, Aquarius rising.

Positions at the entered time
PointPositionMotionPossible signs
SunLeo 28° 08′DirectLeo
MoonTaurus 22° 28′DirectTaurus
MercuryLeo 9° 39′DirectLeo
VenusVirgo 16° 49′DirectVirgo
MarsGemini 16° 32′DirectGemini
JupiterVirgo 19° 09′DirectVirgo
SaturnAquarius 14° 08′RetrogradeAquarius
UranusCapricorn 14° 28′RetrogradeCapricorn
NeptuneCapricorn 16° 32′RetrogradeCapricorn
PlutoScorpio 20° 16′DirectScorpio
Mean north nodeSagittarius 27° 27′RetrogradeSagittarius
True north nodeSagittarius 28° 41′RetrogradeSagittarius
Mean Black MoonAquarius 23° 43′DirectAquarius
Osculating Black MoonPisces 11° 07′DirectPisces
CeresCapricorn 28° 07′RetrogradeCapricorn
PallasSagittarius 19° 09′DirectSagittarius
JunoGemini 15° 17′DirectGemini
VestaLibra 17° 39′DirectLibra
PsycheVirgo 28° 44′DirectVirgo
ErosLeo 8° 27′DirectLeo
ChironLeo 15° 14′DirectLeo
Asteroid LilithVirgo 5° 51′DirectVirgo
AscendantAquarius 7° 47′—Aquarius
DescendantLeo 7° 47′—Leo
MidheavenScorpio 28° 58′—Scorpio
ICTaurus 28° 58′—Taurus
VertexVirgo 5° 58′—Virgo

Wheel numbers: 1 Sun · 2 Moon · 3 Mercury · 4 Venus · 5 Mars · 6 Jupiter · 7 Saturn · 8 Uranus · 9 Neptune · 10 Pluto. Filled marks: Person 1; outlined marks: Person 2.

Aspect grid and readings

Open the planet-by-planet aspect matrix

Rows belong to Person 1; columns belong to Person 2. Select a contact to read that exact pair below. A dash means no selected aspect fits the current orb.

Cross-chart contacts for the ten planets
Person 1 / Person 2SunMoonMercuryVenusMarsJupiterSaturnUranusNeptunePluto
Sun——————
Moon————————
Mercury—————————
Venus—————
Mars————
Jupiter———————
Saturn————————
Uranus———————
Neptune————
Pluto——

219 contacts in the selected view. Separation is the shortest angle; orb is the distance from the exact aspect angle.

Person 1AspectPerson 2SeparationOrb
ICTrineMars119.97°0.03°
MidheavenSextileMars60.03°0.03°
MidheavenSquareNeptune89.97°0.03°
ICSquareNeptune90.03°0.03°
CeresSemisextileChiron30.10°0.10°
NeptuneConjunctionUranus0.13°0.13°
JupiterSemisextileMercury30.13°0.13°
CeresSemisextileJuno29.85°0.15°
NeptuneSemisextileSaturn29.79°0.21°
MercurySquareDescendant89.77°0.23°
MercurySquareAscendant90.23°0.23°
ErosSextileSaturn59.76°0.24°
PallasSquareSun89.74°0.26°
AscendantOppositionAscendant179.74°0.26°
AscendantConjunctionDescendant0.26°0.26°
DescendantConjunctionAscendant0.26°0.26°
DescendantOppositionDescendant179.74°0.26°
PallasTrineCeres120.26°0.26°
MidheavenQuincunxVenus150.30°0.30°
ICSemisextileVenus29.70°0.30°
PallasQuincunxTrue north node149.70°0.30°
PallasTrinePsyche120.35°0.35°
JunoQuincunxJuno150.36°0.36°
PlutoQuincunxMars149.62°0.38°
PlutoSextileNeptune60.38°0.38°
JunoSquareChiron90.41°0.41°
MercurySquareEros90.43°0.43°
UranusQuincunxMercury149.53°0.47°
SunSquareMean Black Moon90.57°0.57°
Asteroid LilithOppositionMercury179.42°0.58°
ErosSquareUranus89.42°0.58°
PallasOppositionMidheaven179.41°0.59°
PallasConjunctionIC0.59°0.59°
MarsQuincunxVesta150.59°0.59°
True north nodeOppositionMercury179.40°0.60°
Asteroid LilithOppositionEros179.38°0.62°
PlutoSextileVenus59.35°0.65°
CeresOppositionUranus179.33°0.67°
UranusQuincunxEros150.73°0.73°
Osculating Black MoonSquareVertex90.78°0.78°
True north nodeSemisextileOsculating Black Moon30.87°0.87°
PlutoQuincunxJuno150.87°0.87°
VestaSemisextileMoon30.88°0.88°
JunoQuincunxMars149.11°0.89°
JunoSextileNeptune60.89°0.89°
NeptuneQuincunxChiron149.11°0.89°
Osculating Black MoonSquareAsteroid Lilith90.89°0.89°
MarsSquarePallas89.10°0.90°
MarsOppositionJupiter179.10°0.90°
PlutoSquareChiron90.92°0.92°
AscendantConjunctionEros0.93°0.93°
DescendantOppositionEros179.07°0.93°
ChironQuincunxSaturn149.06°0.94°
NeptuneQuincunxJuno150.94°0.94°
CeresQuincunxSaturn151.01°1.01°
Osculating Black MoonSextileAscendant61.03°1.03°
Osculating Black MoonTrineDescendant118.97°1.03°
Mean Black MoonOppositionMoon178.95°1.05°
JupiterSemisextileEros28.93°1.07°
ICConjunctionVesta1.14°1.14°
MidheavenOppositionVesta178.86°1.14°
Mean Black MoonConjunctionPluto1.15°1.15°
JunoSextileVenus58.84°1.16°
JunoSextileUranus58.82°1.18°
MidheavenSextileJuno58.77°1.23°
ICTrineJuno121.23°1.23°
MidheavenTrineChiron118.72°1.28°
ICSextileChiron61.28°1.28°
ChironOppositionUranus178.72°1.28°
Asteroid LilithConjunctionAscendant1.29°1.29°
Asteroid LilithOppositionDescendant178.71°1.29°
VestaQuincunxPluto151.32°1.32°
ErosTrineChiron121.35°1.35°
UranusSemisextileAscendant28.61°1.39°
UranusQuincunxDescendant151.39°1.39°
ErosSextileJuno61.40°1.40°
CeresSemisextileMars28.60°1.40°
CeresOppositionNeptune178.60°1.40°
MarsOppositionVenus178.56°1.44°
VenusSextileSaturn58.56°1.44°
PlutoSemisextileVesta28.51°1.49°
JunoSquareSaturn88.48°1.52°
SaturnSemisextileMean Black Moon28.48°1.52°
AscendantSemisextileVertex28.44°1.56°
DescendantQuincunxVertex151.56°1.56°
VenusSemisextileOsculating Black Moon31.57°1.57°
JupiterTrineOsculating Black Moon118.39°1.61°
MercurySquareMercury91.63°1.63°
AscendantSemisextileAsteroid Lilith28.33°1.67°
DescendantQuincunxAsteroid Lilith151.67°1.67°
CeresSextileVenus61.67°1.67°
PlutoSextileUranus58.31°1.69°
Osculating Black MoonTrineEros118.30°1.70°
MarsSextileNeptune61.71°1.71°
MarsSquareMars88.29°1.71°
JupiterQuincunxAscendant151.73°1.73°
JupiterSemisextileDescendant28.27°1.73°
VenusSquareUranus88.22°1.78°
True north nodeOppositionEros178.20°1.80°
VertexSextileMean Black Moon58.20°1.80°
SunConjunctionMoon1.82°1.82°
UranusSextileOsculating Black Moon61.94°1.94°
MarsTrinePluto117.98°2.02°
PlutoSquareSaturn87.97°2.03°
MidheavenSquareUranus92.04°2.04°
ICSquareUranus87.96°2.04°
MercuryTrineVertex117.95°2.05°
ChironTrineOsculating Black Moon122.08°2.08°
DescendantOppositionMercury177.87°2.13°
AscendantConjunctionMercury2.13°2.13°
VestaSextileMean Black Moon57.87°2.13°
MercuryTrineAsteroid Lilith117.84°2.16°
NeptuneQuincunxMars152.20°2.20°
NeptuneConjunctionNeptune2.20°2.20°
MoonConjunctionCeres2.25°2.25°
MoonQuincunxSun147.74°2.26°
Mean Black MoonSextileJupiter62.27°2.27°
PsycheQuincunxMidheaven152.29°2.29°
Mean Black MoonSquareMean Black Moon92.30°2.30°
MidheavenSextileSaturn62.38°2.38°
ICTrineSaturn117.62°2.38°
VestaQuincunxJupiter147.56°2.44°
VestaTrinePallas122.44°2.44°
NeptuneTrineVenus117.53°2.47°
True north nodeConjunctionAscendant2.47°2.47°
True north nodeOppositionDescendant177.53°2.47°
CeresSquareVesta92.52°2.52°
PsycheQuincunxPsyche147.47°2.53°
VenusTrineChiron122.55°2.55°
PsycheTrineTrue north node122.58°2.58°
VenusSextileJuno62.60°2.60°
VertexTrineSun117.39°2.61°
MidheavenTrinePallas117.37°2.63°
ICSextilePallas62.63°2.63°
MidheavenQuincunxJupiter152.63°2.63°
ErosSextileMars62.65°2.65°
ErosSquareNeptune87.35°2.65°
SaturnTrineMoon117.23°2.77°
MoonTrinePsyche117.14°2.86°
SaturnConjunctionCeres2.88°2.88°
SaturnQuincunxSun147.11°2.89°
Osculating Black MoonTrineMercury117.10°2.90°
ErosQuincunxVenus152.92°2.92°
MarsSquareJuno87.04°2.96°
PlutoSextileJupiter57.01°2.99°
VenusTrineMercury116.96°3.04°
MercurySextileOsculating Black Moon56.90°3.10°
MoonSextileMidheaven56.90°3.10°
MoonTrineIC123.10°3.10°
PsycheTrineSun116.86°3.14°
PsycheSquareCeres93.14°3.14°
VertexConjunctionTrue north node3.16°3.16°
VertexSquarePsyche86.79°3.21°
UranusTrineVertex123.21°3.21°
NeptuneSextileOsculating Black Moon56.77°3.23°
NeptuneSquareVesta86.69°3.31°
UranusTrineAsteroid Lilith123.32°3.32°
ChironOppositionNeptune176.65°3.35°
MoonTrineMoon116.60°3.40°
SaturnTrinePsyche116.51°3.49°
JunoSextileJupiter56.50°3.50°
JupiterSextileVertex56.45°3.55°
ChironSextileVenus63.62°3.62°
JupiterSextileAsteroid Lilith56.34°3.66°
SaturnSextileMidheaven56.27°3.73°
SaturnTrineIC123.73°3.73°
ErosOppositionVesta176.23°3.77°
MarsSextileUranus63.78°3.78°
SunTrineCeres116.16°3.84°
SunSquareSun93.84°3.84°
VenusSextileMars63.85°3.85°
VenusSquareNeptune86.15°3.85°
True north nodeConjunctionSaturn3.88°3.88°
VestaOppositionVesta176.07°3.93°
CeresTrineOsculating Black Moon124.02°4.02°
SunOppositionPluto175.98°4.02°
PlutoConjunctionPluto4.10°4.10°
ErosTrineMercury115.76°4.24°
VenusTrineEros115.76°4.24°
Osculating Black MoonSquareOsculating Black Moon94.37°4.37°
SunTrinePsyche124.44°4.44°
ChironSquareVesta94.46°4.46°
JunoTrineOsculating Black Moon115.47°4.53°
PsycheTrineAsteroid Lilith124.59°4.59°
JunoConjunctionPluto4.61°4.61°
PallasSquareMean Black Moon94.66°4.66°
SunOppositionMidheaven175.31°4.69°
SunConjunctionIC4.69°4.69°
PsycheTrineVertex124.70°4.70°
NeptuneTrineJupiter115.20°4.80°
VenusTrineDescendant115.09°4.91°
JupiterOppositionUranus175.04°4.96°
VenusOppositionVesta175.03°4.97°
True north nodeOppositionChiron175.01°4.99°
True north nodeTrineJuno125.04°5.04°
PlutoTrineOsculating Black Moon114.96°5.04°
VestaSquareNeptune95.05°5.05°
Asteroid LilithConjunctionSaturn5.06°5.06°
CeresTrinePluto125.13°5.13°
SunTrineJupiter114.86°5.14°
ErosTrinePallas114.74°5.26°
UranusConjunctionUranus5.29°5.29°
ErosTrineEros114.56°5.44°
PallasConjunctionMoon5.91°5.91°
Asteroid LilithOppositionChiron173.83°6.17°
PlutoOppositionMoon173.69°6.31°
VertexConjunctionPallas6.38°6.38°
AscendantOppositionSaturn173.39°6.61°
DescendantConjunctionSaturn6.61°6.61°
JunoOppositionMoon173.18°6.82°
JupiterOppositionNeptune172.97°7.03°
MarsConjunctionOsculating Black Moon7.13°7.13°
UranusConjunctionNeptune7.36°7.36°
Mean Black MoonConjunctionMidheaven7.56°7.56°
Mean Black MoonOppositionIC172.44°7.56°
DescendantOppositionChiron172.28°7.72°
AscendantConjunctionChiron7.72°7.72°
Osculating Black MoonConjunctionMidheaven7.78°7.78°
Osculating Black MoonOppositionIC172.22°7.78°
IC trine Mars · 0.03° orb

Person 1’s IC brings private roots, home and belonging; Person 2’s Mars brings initiative, desire and the expression of disagreement. The one-hundred-and-twenty-degree relationship connects themes through a common element. The reading emphasizes ease and familiar expression; discuss how to keep that ease active.

Which household routines help each person feel settled? How do you make requests directly and give one another room to say no?

Midheaven sextile Mars · 0.03° orb

Person 1’s Midheaven brings public aims, vocation and recognition; Person 2’s Mars brings initiative, desire and the expression of disagreement. The themes are linked by a sixty-degree relationship. The traditional reading emphasizes opportunities that become useful through participation and practice.

How do your longer-term ambitions fit into shared plans? How do you make requests directly and give one another room to say no?

Midheaven square Neptune · 0.03° orb

Person 1’s Midheaven brings public aims, vocation and recognition; Person 2’s Neptune brings ideals, imagination and longing. The ninety-degree relationship brings two themes into friction. Compare their different priorities and agree on a way to make room for both.

How do your longer-term ambitions fit into shared plans? Which expectations have you actually discussed, and which have you assumed?

IC square Neptune · 0.03° orb

Person 1’s IC brings private roots, home and belonging; Person 2’s Neptune brings ideals, imagination and longing. The ninety-degree relationship brings two themes into friction. Compare their different priorities and agree on a way to make room for both.

Which household routines help each person feel settled? Which expectations have you actually discussed, and which have you assumed?

Ceres semisextile Chiron · 0.10° orb

Person 1’s Ceres brings nurturing, care and the exchange of support; Person 2’s Chiron brings vulnerability, compassion and sensitive experiences. The thirty-degree relationship joins neighboring signs. The reading compares small differences in priorities rather than assuming the same way of doing things.

Which forms of practical care feel welcome to each of you? How do you ask for care without assigning the other person responsibility for every hurt?

Neptune conjunction Uranus · 0.13° orb

Person 1’s Neptune brings ideals, imagination and longing; Person 2’s Uranus brings independence, change and personal freedom. The two themes occupy the same part of the zodiac. Read their combination together; the planets determine whether the emphasis feels familiar, demanding or both.

Which expectations have you actually discussed, and which have you assumed? How much spontaneity and separate space does each person enjoy?

Jupiter semisextile Mercury · 0.13° orb

Person 1’s Jupiter brings growth, encouragement and shared beliefs; Person 2’s Mercury brings speech, listening and the exchange of ideas. The thirty-degree relationship joins neighboring signs. The reading compares small differences in priorities rather than assuming the same way of doing things.

Where do you support one another’s curiosity without promising more than you can give? How do you check that you understood one another before responding?

Ceres semisextile Juno · 0.15° orb

Person 1’s Ceres brings nurturing, care and the exchange of support; Person 2’s Juno brings commitment, reciprocity and partnership expectations. The thirty-degree relationship joins neighboring signs. The reading compares small differences in priorities rather than assuming the same way of doing things.

Which forms of practical care feel welcome to each of you? What does a fair commitment look like to each of you?

Neptune semisextile Saturn · 0.21° orb

Person 1’s Neptune brings ideals, imagination and longing; Person 2’s Saturn brings commitments, boundaries and responsibility. The thirty-degree relationship joins neighboring signs. The reading compares small differences in priorities rather than assuming the same way of doing things.

Which expectations have you actually discussed, and which have you assumed? Which responsibilities have you explicitly agreed to share?

Mercury square Descendant · 0.23° orb

Person 1’s Mercury brings speech, listening and the exchange of ideas; Person 2’s Descendant brings the qualities encountered through partnership. The ninety-degree relationship brings two themes into friction. Compare their different priorities and agree on a way to make room for both.

How do you check that you understood one another before responding? What do you each expect from an equal partner?

Mercury square Ascendant · 0.23° orb

Person 1’s Mercury brings speech, listening and the exchange of ideas; Person 2’s Ascendant brings first impressions and an outward approach to life. The ninety-degree relationship brings two themes into friction. Compare their different priorities and agree on a way to make room for both.

How do you check that you understood one another before responding? How do your usual ways of meeting a new situation fit together?

Eros sextile Saturn · 0.24° orb

Person 1’s Eros brings desire, attraction and passionate attention; Person 2’s Saturn brings commitments, boundaries and responsibility. The themes are linked by a sixty-degree relationship. The traditional reading emphasizes opportunities that become useful through participation and practice.

How do you communicate desire while respecting each person’s boundaries? Which responsibilities have you explicitly agreed to share?

House overlays

DirectionPlanetPartner’s houseHouse theme
Person 1 → Person 2Mean north node1Self and approach
Person 1 → Person 2True north node1Self and approach
Person 1 → Person 2Asteroid Lilith1Self and approach
Person 2 → Person 1Sun1Self and approach
Person 2 → Person 1Mercury1Self and approach
Person 2 → Person 1Eros1Self and approach
Person 2 → Person 1Chiron1Self and approach
1 · Self and approach

The planet person meets the house person’s outward style and first response. Compare how each person takes initiative and how that initiative is received.

Dating reading

Explore first expectations, communication and the ways you enjoy spending time together.

  • Mercury square Mercury: Person 1’s Mercury brings speech, listening and the exchange of ideas; Person 2’s Mercury brings speech, listening and the exchange of ideas. The ninety-degree relationship brings two themes into friction. Compare their different priorities and agree on a way to make room for both.
  • Venus trine Mercury: Person 1’s Venus brings affection, pleasure and shared values; Person 2’s Mercury brings speech, listening and the exchange of ideas. The one-hundred-and-twenty-degree relationship connects themes through a common element. The reading emphasizes ease and familiar expression; discuss how to keep that ease active.
  • Sun square Sun: Person 1’s Sun brings identity, purpose and recognition; Person 2’s Sun brings identity, purpose and recognition. The ninety-degree relationship brings two themes into friction. Compare their different priorities and agree on a way to make room for both.
  • What pace feels comfortable to each of you?
  • Which gestures communicate interest clearly?
  • What would you like to know before making assumptions?