Velvet Zodiac

Synastry house overlays

Read where the contact lands.
Keep the direction visible.

House overlays show where one person’s planet lands in the other person’s timed house frame. They are directional, time-sensitive, and best read beside aspects—not as a compatibility score.

Calculate both directions Browse synastry aspects

Calculation first

A planet-person and a house-person are not interchangeable.

If your Venus falls in someone’s 7th house, that does not put their Venus in your 7th. Velvet Zodiac calculates A → B and B → A separately, and it can preserve one reliable direction when only one receiving birth time is known.

Unknown receiving time means no exact house frame. For an approximate time, Velvet Zodiac scans every valid minute in the declared interval: an overlay is Stable only if the receiving house survives the full range, otherwise it is Boundary-sensitive. Whole Sign, Equal House, and Placidus are disclosed, and a center placement within 2° of a cusp receives a separate boundary caution rather than being silently reassigned.

Planet person

Sun overlays

Identity enters the private house

Sun in the 4th House Synastry: Home, Roots, and Private Identity

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Identity meets the partnership house

Sun in the 7th House Synastry: Partnership Projection and Recognition

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Identity enters the house of shared stakes

Sun in the 8th House Synastry: Intimacy, Exposure, and Shared Stakes

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Planet person

Moon overlays

Emotional rhythm meets the home base

Moon in the 4th House Synastry: Emotional Home and Familiarity

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Emotional needs meet the partnership field

Moon in the 7th House Synastry: Emotional Needs and Partnership Expectations

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Emotional rhythm enters shared-stakes territory

Moon in the 8th House Synastry: Vulnerability, Trust, and Shared Resources

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Emotional rhythm enters the hidden house

Moon in the 12th House Synastry: Privacy, Projection, and Emotional Blind Spots

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Planet person

Venus overlays

Affection enters the house of play

Venus in the 5th House Synastry: Pleasure, Romance, and Creative Play

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Affection meets the partnership house

Venus in the 7th House Synastry: Affection, Values, and Partnership Expectations

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Affection enters shared-stakes territory

Venus in the 8th House Synastry: Intimacy, Reciprocity, and Shared Value

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Planet person

Mars overlays

Drive enters the partnership house

Mars in the 7th House Synastry: Initiative, Conflict, and Partnership Negotiation

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Drive enters the house of vulnerability and power

Mars in the 8th House Synastry: Desire, Power, and Shared Stakes

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Common questions

What should I verify before reading an overlay?

Do I need both birth times?

No for every direction. You need a reliable birth time for the receiving chart whose houses are being used. If only one person has a known time, Velvet Zodiac can still show the other person’s planets entering that timed chart and withhold the unsupported reverse.

Can house systems disagree?

Yes. Whole Sign, Equal House, and Placidus can place a planet differently near boundaries. That is why the calculator exposes the selected system and shows a cusp-distance caution instead of hiding the methodology.