Synastry Report: A Complete Guide to Relationship Astrology

What is a Synastry Report?

A Synastry Report is an astrological compatibility analysis between two people. Unlike a regular birth chart that looks at one person’s traits, synastry overlays two charts to reveal how their planets interact.

Think of it as a cosmic relationship map — showing how your Sun, Moon, Venus, Mars, and other planetary energies blend (or clash) with your partner’s. The result? A deeper understanding of your bond, strengths, challenges, and long-term potential.

Whether you are dating, married, or simply curious about a connection, a synastry report shines light on the invisible dynamics shaping your relationship.

How Does Synastry Work?

In astrology, planets represent energies. When two charts are compared:

• Harmonious aspects (like Trines ✧ and Sextiles ✦) suggest ease, flow, and natural attraction.
• Challenging aspects (like Squares □ and Oppositions ☍) reveal tension, growth, and lessons.
• Conjunctions ☌ can go either way — intense chemistry or overwhelming clashes, depending on the planets involved.

A synastry report doesn’t predict whether a relationship will succeed or fail. Instead, it shows where you align, where you differ, and how to make the most of both.

Key Elements in a Synastry Report

Here are the most important aspects astrologers look at in synastry:

1. Sun-to-Sun Connections

Your Sun represents core identity and life force. When Suns align, you “get” each other at a deep level. Challenging Sun aspects may cause ego battles.

2. Moon-to-Moon & Moon-to-Sun Aspects

The Moon reflects emotions and instincts. A strong Sun-Moon or Moon-Moon link creates emotional comfort, deep attraction, and long-term bonding potential.

3. Venus and Mars Interactions

• Venus = love, attraction, affection.
• Mars = passion, drive, sexuality.

Venus-Mars aspects often point to strong chemistry — both romantic and physical.

4. Mercury Connections

Mercury rules communication. Harmonious aspects make conversations flow easily, while tense ones may lead to misunderstandings.

5. Saturn’s Influence

Saturn brings stability, responsibility, and sometimes restriction. A Saturn bond can indicate long-term commitment but may also feel heavy if not balanced.

6. Jupiter’s Blessings

Jupiter expands joy and optimism. Jupiter aspects often create a sense of fun, generosity, and mutual growth in the relationship.

Why Get a Synastry Report?

Here’s what a synastry report can help you discover:

• Attraction & chemistry → Why you’re drawn to each other.
• Communication style → How you naturally connect (or clash) in conversation.
• Emotional compatibility → How each person nurtures and responds emotionally.
• Growth challenges → Areas where you might face friction and how to handle it.
• Long-term potential → What supports stability, commitment, and balance.

Many couples use synastry to gain insight before making big decisions — moving in together, marriage, or business partnerships.

Example of a Synastry Reading

Imagine Person A’s Venus is in harmony with Person B’s Mars. This often signals undeniable attraction and a spark of passion.

But if Person A’s Moon clashes with Person B’s Saturn, emotional expression may feel blocked or restricted.

Together, the report would explain how passion exists but requires emotional patience and maturity to thrive.

Try It Yourself: Interactive Synastry Calculator

Instead of just reading, you can generate your own synastry report instantly. Enter two birth charts (date, time, and location) into the Synastry Calculator above.

The tool creates:

• A combined chart wheel.
• A list of key aspects between the planets.
• Clear interpretations of how those aspects affect the relationship.

This allows you to see in real time how your energies blend.

Things to Remember

• Astrology offers guidance, not absolute predictions.
• A synastry report can highlight patterns, but free will and conscious choices matter most.
• Every connection, even with challenges, has potential if both people are willing to grow.