Create Your Composite Chart
Professional astrology charts with NASA-grade accuracy. Simple, playful and beautifully detailed.
Features
Understanding Composite Charts
All Chart Types in One Dashboard
Input details once. Access composite, synastry, and all chart types from one dashboard.
Emma & James
Composite Chart
Birth Place: London, UK
House System: Placidus
| Q | Q | |||||||||
| R | " | R | ||||||||
| S | S | |||||||||
| T | $ | % | # | T | ||||||
| U | $ | % | $ | U | ||||||
| V | # | V | ||||||||
| W | % | $ | # | " | % | W | ||||
| X | % | $ | % | " | $ | X | ||||
| Y | # | # | $ | Y | ||||||
| Z | % | # | $ | # | % | Z |
Composite Aspect Grid
Every midpoint aspect in your relationship chart mapped in a clean grid.
| Q | Q | |||||||
| R | " | R | ||||||
| S | S | |||||||
| T | $ | % | # | T | ||||
| U | $ | % | $ | U | ||||
| V | # | V | ||||||
| W | % | $ | # | " | % | W | ||
| X | $ | # | X |
Natal Venus Trine Natal Mars
Orb: 0.00°
NASA-Accurate Calculations
Swiss Ephemeris precision for every composite midpoint we calculate.
Interactive Composite Exploration
Click any planet to explore the purpose and dynamics of your relationship.
Emma & James
Composite Chart
Birth Place: London, UK
House System: Placidus
Saturn in Capricorn in 10th house
Rules 10th, 11th Houses
Aspects
Explore Our Curated Series
Learn more
Sun Conjunct Venus in Synastry: A Love So Natural, It Feels Fated
Explore the warmth and harmony when Sun meets Venus in synastry - an aspect that brings natural affection, admiration, and a sense of ease in relationships.
Moon Conjunct Mars in Synastry: How the Signs Shape the Connection
Discover the emotional intensity and instinctive connection when Moon meets Mars in synastry - a powerful aspect that ignites deep feelings and protective instincts.
Morning Star vs. Evening Star: The Art of Leading and Following
Discover how your planets' relationship to the Sun shapes their expression — whether they act as bold Scouts rushing ahead or wise Scribes reflecting behind.
Built for Learners
Accessible, Without Losing the Depth
YES. Accuracy Matters to us.
We invested in a Swiss Ephemeris license to ensure charts we calculate are NASA accurate. Because it matters.
Made Useful.
For All Levels.
Whether it's birth chart or transit, every chart is designed to be intuitive from day one and powerful when you need it.
Customize As and When You Need.
House systems, orbs, asteroids - adjust or leave the defaults. There when you want them, out of the way when you don't.
Simple Surface.
Deep Core.
Start with clean, intuitive charts. Go deeper with transits, synastry, solar returns and more - all from one dashboard.
The Complete Toolkit
Our Growing Tools Library
Professional Grade - Powered by Swiss Ephemeris
Customizable House Systems
Advanced Arabic Parts & Asteroids
All-in-One Dashboard
Enter Both Birth Details
Provide birth data for both partners - date, time, and location. Accurate birth times enable precise midpoint calculations for your composite chart.
Calculate Midpoints
Our composite chart calculator finds the midpoint between each planet pair, creating a single unified chart that represents your relationship as an entity.
Explore Your Relationship Chart
Click any planet to see its house placement and aspects. Your composite chart reveals the purpose, dynamics, and potential of your relationship itself.
The How-To
Getting Started with Composite Charts
Create your unified relationship chart in three simple steps. Our composite chart calculator merges two birth charts using planetary midpoints to reveal your relationship's cosmic blueprint.
Questions
and Answers
What is a composite chart?
A composite chart creates a single unified chart representing the relationship itself. It's calculated by finding the midpoint between each planet pair in two birth charts, creating a unique cosmic blueprint of the relationship as an entity.
How is a composite chart different from synastry?
Synastry overlays two charts to show how two people interact. A composite chart merges them into one, showing the relationship's own identity, purpose, and dynamics - as if the relationship itself had a birth chart.
How accurate is your composite chart calculator?
Our composite chart calculator uses Swiss Ephemeris with NASA-grade accuracy. We calculate precise midpoints for all planets and use spherical geometry for geographic midpoint location.
What location is used for composite house calculations?
We use the geographic midpoint between both birth places for house calculations, treating it as the relationship's 'birthplace'. The composite MC is derived from the midpoint of both natal MCs.
Is the composite chart calculator free?
Yes! Generate unlimited composite charts for free. No signup required. Explore your relationship's cosmic blueprint with professional-grade accuracy.
When should I use a composite chart vs synastry?
Use synastry to understand how you and your partner interact and affect each other. Use the composite chart to understand the relationship itself - its purpose, challenges, and the energy you create together.
AskNova
Professional astrology charts with NASA-grade accuracy. Simple, playful and beautifully detailed.
Create Your Free Chart