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In-depth report · Astrology

Compatibility report: synastry between two natal charts

Synastry between two natal charts: a double wheel, three couple scales, key contacts, your partner’s planets in your houses, and a reading across six themes, from emotions to growth points.

  • 6 themes and key contacts
  • Yours as a PDF
  • Signs and elements are free
  • Couple report with Premium
In-depth reports 7 min read Updated
Report · PDF
Compatibility report
Anna and Max · love · sample
Harmony 78Attraction 92Tension 41
Two charts on one circle

What a compatibility report is

An Oracul compatibility report isn’t based on Sun signs. It’s built from both natal charts in full: the planets, the houses, and the angles between them. This is synastry, the comparison of two people’s charts. Why signs alone aren’t enough, which contacts matter most, and how to work out a contact by hand are covered in “Natal chart compatibility: how to read synastry.” Here, we look at what exactly you get in the report.

The report doesn’t pass judgment. It shows where you’re drawn to each other, where things come easily, and where you’ll have to negotiate, and you won’t find the words “incompatible” or “doomed” in it. Such labels are forbidden in the report: challenging contacts are described as dynamics and growth points. Your first steps are on the compatibility page, where signs and elements for two birth dates are calculated on the site for free.

What’s inside the report

The report opens in the app and is saved as a PDF. It has seven parts, from the overall score to questions for the Oracle.

  1. 01Couple overview
    Overall score and three scales
    The couple’s headline, an overall score out of 100, and three scales: harmony, tension, and attraction. The type of relationship (love, friendship, work, or family) changes the emphasis of the text.
  2. 02Double wheel
    Two charts on one circle
    Your chart is inside, and your partner’s planets sit in the outer ring. That way you can see where the planets touch.
  3. 03Key contacts
    Up to five strongest connections
    Each contact is labeled “harmony,” “attraction,” or “tension” and comes with a one-line explanation.
  4. 04Houses
    Where your partner lands in your chart
    Each person’s Sun, Moon, Venus, and Mars in the other’s houses, shown as cards. This needs both birth times.
  5. 05All aspects
    A grid of every contact found
    The full list of connections between the two charts, including those that don’t count toward the overall score.
  6. 06Reading by theme
    Six sections
    Overall dynamic, emotions, love and attraction, communication, values and everyday life, and growth points. Each has a “Key takeaway” line with one practical step.
  7. 07The Oracle on your couple
    Questions and PDF
    Three suggestions for what to ask next, a Share button, and a PDF that arrives in your chat.

Three scales and the overall score

Every connection between the two charts gets a weight: the weight of the planet pair × the sign of the aspect × a falloff by orb. The heaviest pairs are Sun and Moon, Moon and Moon, Venus and Mars, plus contacts of the Sun, Moon, and Venus with the Ascendant and Descendant. Next, in descending order, come Sun–Sun, Venus–Venus, Moon–Venus, Mars–Mars, and Saturn with the Sun, Moon, or Venus; then Mercury and the mixed pairs Sun–Venus, Sun–Mars, and Moon–Mars. Jupiter, the lunar node, and the outer planets add a little weight. The more exact the aspect, the stronger its contribution: at the edge of the orb it is almost zero.

  • Harmony is the sum of supportive contacts: trines, sextiles, and soft conjunctions.
  • Tension is the sum of contacts that need working in: squares, oppositions, and hard conjunctions (Saturn, Mars, the outer planets).
  • Attraction is the total strength of all contacts: how strongly the two charts touch each other.

The overall score is the balance of harmony and tension on a scale up to 100. It is calibrated on a sample of random pairs: a typical couple gets around 60, about 10% of pairs score below 35, and about 10% score above 75. So 60 is an ordinary good couple, not “average,” and 40 is simply a pair that will need more conversations. The score is symmetrical: “A and B” and “B and A” get the same numbers. It’s a reference point, not the odds of success.

How to read the result

Start not with the number but with the “Key takeaway” line and the couple’s headline: they describe the tone of the relationship in one sentence. Then look at the three scales together. High attraction with high tension means “sparks”: a couple that is interesting and not easy. High harmony with low attraction is a calm union where the challenge is not losing interest. Low values on both scales mean the charts overlap little, which isn’t a minus, just a feature.

  • Read key contacts as topics for conversation. A “tension” label marks an area where it’s worth agreeing on things in advance, not a reason to doubt the couple.
  • Look at houses in both directions. What your partner “does” in your chart and what you do in theirs is usually a different picture.
  • Check it against yourself. Do you recognize what’s described? If not, work out what exactly didn’t match: a birth time may be inaccurate.
  • Don’t compare your scores with anyone else’s. A score describes the balance of contacts within one couple.

If one of you doesn’t know your birth time, the Moon can be 6–7° off, so its contacts are weighted less and the “Houses” section is hidden with a note. The rest stays: the Sun, Venus, Mars, and the other personal planets barely move over a single day.

A sample from the report

Reading by theme · Overall dynamic
Fire and Earth: inspiration and grounding

You spark things off, and he holds the shape. Together you move toward your goals faster than you would alone: your drive gets support, and his steadiness gets momentum. This couple’s strongest contact is the opposition between your Venus and his Mars, one of the most visible signs of attraction.

Key takeaway: agree on who sets the pace in which areas, and you’ll argue less.

  • EmotionsHow each of you calms down
  • Love and attractionWhere the sparks fly
  • CommunicationHow you understand each other
…and 3 more themes, the key contacts, and the houses. The sample is a fictional couple, Anna and Max, relationship type “love”; the numbers (84, 78, 92, 41) are illustrative. In the app, the text speaks to you directly, as all of Oracul does.

Who it fits

A good fit if you
  • you want to understand where the pull and the friction in a couple come from, rather than get a “you’re a match / you’re not” rating
  • you’re getting to know someone or building a relationship and want language for talking about differences
  • you’re working through a friendship, a work relationship, or family: you can choose the relationship type
  • you know your partner’s birth date, or better yet, the time and city too
Not for you if
  • you want a single “chance of marriage” number, and no such measure exists
  • you only want to check Sun signs, and the free calculator on the site is enough
  • you’re after a forecast of “will we stay together,” which a tarot spread or the couple forecast suits better
  • you don’t have the other person’s birth date

To read the coming months for two, see the “Couple forecast” report. If you want your own chart, see the natal chart report.

How we calculate and write it

  1. 1
    We calculate both charts
    The positions of the Sun, Moon, and planets through Pluto, and the mean lunar node; with a known birth time, also the Ascendant, MC, and Placidus houses.
  2. 2
    We count the contacts
    Aspects between the charts within these orbs: up to 8° for the Sun and Moon, up to 6° for Mercury, Venus, Mars, and the angles, 4° for Jupiter and Saturn, 3° for the node, and 2° for the outer planets.
  3. 3
    We write the reading
    The text is written from the calculation: no aspects, houses, or nodes are added beyond the list, and without a birth time the houses aren’t shown.

This is how synastry works; Oracul doesn’t build a composite chart (from the midpoints between planets). Astrology has no scientific support as a way to predict relationships: the report is a language for conversation, not a diagnosis. Relationships depend on the choices people make.

How to get your report

  1. 1
    Open Oracul
    The @oracul_tarot_bot bot in Telegram, with nothing to install and no sign-up.
  2. 2
    Add yourself and your partner
    Birth date, time, and city for both of you. Choose the type: love, friendship, work, or family.
  3. 3
    Read and share
    The score, contacts, houses, and themes are in the app; the PDF arrives in your chat and stays with you for good.
Signs and elements are free
You can see a couple’s signs and elements on the site from two birth dates. In the app, your first readings are free, and with Premium one in-depth couple report per period is included in the subscription.

Questions about the report

Do I need both people’s birth times?

It’s best to have them. Without them the report is still built, but without the Ascendant, Descendant, MC, and the “Houses” section, and the Moon’s contacts carry less weight, since without a time the Moon can be off by 6–7°. The main Sun, Venus, and Mars contacts remain.

What do harmony, tension, and attraction mean?

Harmony is the sum of supportive contacts (ease, a shared language). Tension is the sum of friction points a couple grows through. Attraction is the total strength of all contacts: how strongly the two charts touch each other. The three scales are calculated separately from the overall score.

What does the overall score show?

The balance of harmony and tension on a scale up to 100. It is calibrated so a typical couple scores around 60, about 10% of random pairs score below 35, and 10% score above 75. It is a reference point, not the odds of a relationship working out.

Does the report work for friendships, work, and family?

Yes. When you create a pair, you choose the relationship type: love, friendship, work, or family. For friends and coworkers the text doesn’t mention romance, and for family it speaks about warmth and boundaries.

Can I send the report to my partner?

Yes. There’s a Share button, and the PDF arrives in your chat with the bot and stays with you. The text is written without verdicts, which makes it easy to read together.

Report · PDF
Compatibility report
synastry · three scales

Find out what holds you together

Add yourself and your partner: Oracul compares the two charts, calculates the three couple scales, and explains the key contacts. The PDF is yours to keep.

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