Free Mutual Reception Calculator

Mutual reception is when two planets sit in each other's dignified signs at the same time. The classical case: Mars in Libra (which Venus rules) while Venus is in Aries (which Mars rules). Each planet is a guest in the other's home, and William Lilly's seventeenth century framing still works: they are "as two friends who have interest each in others estates."

The reception binds them. Whatever each planet does, it does partly on the other's behalf. A debilitated planet caught in a strong reception is no longer stranded; the partner pulls resources for it. Two well-placed planets in reception become a closed circuit, hard to interrupt.

That's the simple version. The complication, which most articles skip, is that "dignity" is not one thing.

Traditional astrology recognizes five essential dignities a planet can hold in a sign: domicile, exaltation, triplicity, bound (also called term), and face (also called decan). Mutual reception works at each layer. The strength of the reception falls as you move down the list.

How this calculator differs. Most online mutual reception tools stop at domicile, or at most domicile and exaltation. The traditional dignity stack has five layers, and Lilly and Lehman both treat reception at every layer as real. The calculator above runs all five and ranks them, so a face reception between two unrelated planets is visible but de-emphasized while a domicile reception between your Sun and chart ruler lands at the top.

Reception by domicile. The strongest form, and the one most people mean when they say "mutual reception" without qualification. Each planet is in the sign the other rules. Mercury in Capricorn while Saturn is in Gemini. Jupiter in Cancer while the Moon is in Sagittarius. About 43% of charts contain at least one mutual reception by domicile among the seven traditional planets.

Reception by exaltation. Each planet sits in the sign of the other's exaltation. Jupiter in Cancer while the Moon is in Taurus is the textbook case: Jupiter is exalted in Cancer, the Moon is exalted in Taurus, so each planet stands raised up in the partner's territory. Lilly and J. Lee Lehman both treat exaltation reception as roughly equal in force to domicile.

Reception by triplicity. Each element has triplicity rulers, three of them in the Dorothean scheme: a day ruler, a night ruler, and a cooperating participant. Triplicity reception happens when each planet sits in a sign where the other holds triplicity dignity. Quiet but durable; good for long projects. The calculator above treats your chart as diurnal or nocturnal automatically and applies the sect-appropriate primary ruler (the day or night lord). The cooperating participant is not used here; this matches the modern Hellenistic standard but is stricter than some medieval sources that recognize reception via the participating ruler too.

Reception by bound (term). Each sign is divided into five unequal segments, each ruled by a different planet. The Egyptian bounds are the working standard; the calculator uses them because most working traditional astrologers do, including Lilly, Lehman, and Robert Hand. Bound reception narrows to specific degrees and operates at the level of technique and craft rather than identity.

Reception by face (decan). The faces (or decans) divide each sign into three ten-degree sections. Face reception is the weakest of the five, often used as confirmation rather than as a primary signal. Lehman calls it "the layer you reach for last," which is roughly the right priority.

Mixed reception is when the two planets exchange visits but the dignity layers do not match. One planet hosts at the level of domicile while the other hosts at the level of exaltation, or some other combination.

Worked example: the Sun in Pisces while Jupiter is in Aries. Pisces is Jupiter's domicile, so Jupiter receives the Sun by domicile. Aries is the Sun's exaltation, so the Sun receives Jupiter by exaltation. Each direction uses a different dignity, so the contract is asymmetric. Jupiter, hosting on his stronger ground (domicile), holds more weight in the partnership than the Sun, hosting on the lighter ground of exaltation. Both planets are still bound to cooperate; the resources flow more heavily one way.

Mixed reception comes up often once you include the minor dignities. Triplicity-and-bound mixes, exaltation-and-triplicity mixes, bound-and-face mixes all show up in real charts. The calculator labels each direction explicitly so you can see which side holds which dignity.

Two camps disagree here.

The Hellenistic position: if the planets are in aversion (no Ptolemaic aspect, meaning no sextile, square, trine, or opposition between their signs, and no conjunction), the reception is dormant. Aversion means the planets cannot see each other. A reception with no sightline becomes a paper contract neither party can enforce. Chris Brennan and the modern Hellenistic revival have emphasized this rule.

The Renaissance position, articulated most clearly by Lilly: the reception persists regardless of aspect. The two planets are bound at the level of dispositorship, which is structural rather than visual.

The calculator surfaces both readings. Each detected reception comes with an aspect modifier showing whether the planets are in trine, sextile, square, opposition, conjunction, or aversion. The strength rank weights aspected receptions higher. If you follow Hellenistic rules, treat aversed receptions as inactive. If you follow Lilly, treat them as active but quieter.

The often-cited 43% statistic refers to charts containing at least one mutual reception by sign (domicile or exaltation) among the seven visible planets. That number is high because there are 21 possible planet pairs and only one needs to register.

Bring the minor dignities into the count and the number rises sharply. Most charts contain a triplicity reception somewhere. Bound and face receptions are common enough that almost every chart will surface at least one. The question becomes which receptions matter for your chart, not whether you have any.

That is why the calculator ranks results by strength rather than just listing them. A face reception between two unrelated planets is technical trivia. A domicile reception between your Sun and your chart ruler is structural.

If you want to check by hand:

1. List your seven traditional planets and their signs.
2. For each planet, note which planet rules its sign by domicile. Mercury rules Gemini and Virgo. Venus rules Taurus and Libra. Mars rules Aries and Scorpio. Jupiter rules Sagittarius and Pisces. Saturn rules Capricorn and Aquarius. The Sun rules Leo. The Moon rules Cancer.
3. For each pair of planets, ask: is each planet in a sign the other rules? If yes, you have a domicile reception.
4. Repeat for exaltation. Sun exalted in Aries. Moon in Taurus. Mercury in Virgo. Venus in Pisces. Mars in Capricorn. Jupiter in Cancer. Saturn in Libra. Look for cross-placements.
5. Triplicity, bound, and face require dignity tables. Lilly's Christian Astrology and Lehman's Essential Dignities both publish the standard sets.

Or paste your birth data above and the calculator runs all five layers in one pass, including mixed receptions and the aspect-modifier check. The manual method is worth doing once, the way you balance a checkbook by hand once before letting the spreadsheet take over.

A fast interpretive grid for what each reception layer says.

Domicile reception: a full executive partnership. The planets share resources without restriction. Whatever each does, the other backs.

Exaltation reception: mutual recognition and elevation. The planets raise each other in the public eye. Strongest when the chart is asking a question about reputation, status, or honor.

Triplicity reception: elemental support. The planets cooperate at the level of temperament. Quiet but durable. Good for long projects.

Bound reception: technical alliance. The planets work together on specific tasks within their shared expertise. Operates at the level of craft.

Face reception: cosmetic kinship. Surface-level resonance. Use as confirmation, not as a primary signal.

When the same pair has reception at multiple layers, the bond is unusually strong. Two planets in domicile and triplicity reception are essentially fused for the purposes of that chart.

For the interpretive history of mutual reception, including Lilly, Lehman, and the Hellenistic dispute, see the mutual reception explainer. The full dignity stack lives in the essential dignities calculator; the bound layer specifically is broken out in the Egyptian bounds calculator.