Harmonic chart calculator

A harmonic chart multiplies every position in your birth chart by a whole number and reduces it back into the circle. It sounds arbitrary and is not: the point is that an aspect in the base chart becomes a conjunction in its harmonic. Planets a fifth of the circle apart — seventy-two degrees, the quintile — sit together in the fifth harmonic, where they are impossible to miss.

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Harmonic Charts

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Gender

Birth date

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Hour Min

City of Birth. Start typing and matching places will appear. For "San Francisco" in the US, type "san". If your city doesn't show up, add the country or state. For example, for "San Francisco" in the Philippines, type "san francisco phil"

Which harmonic

Every position multiplied by a number, so that aspects your birth chart never draws become conjunctions. The 5th harmonic shows creativity and craft, the 7th inspiration and longing, the 9th what you are drawn to as meaning.

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That is the whole method. The minor aspects are hard to see and easy to dismiss in an ordinary chart; in the right harmonic they become the loudest thing on the wheel. A chart that looks unremarkable can turn out to have a tight stellium in its ninth harmonic, and that tells you something the birth chart was whispering.

Each number carries its own meaning, taken from the aspect it belongs to. The fifth harmonic is craft, creativity and the imposition of form. The seventh is inspiration, longing and the things a person is drawn towards without being able to justify them. The ninth is meaning, and in the Indian tradition the ninth divisional chart is read for marriage and for what a life is ultimately for. Those three are the harmonics the report draws.

Read a harmonic chart for its conjunctions and its close configurations, not for its houses or its signs — those are artefacts of the multiplication rather than statements. The question to ask is always which planets have been brought together, and then what they mean back in the birth chart they came from.

The report harmonises the ten planets and the lunar Node, and leaves the Ascendant and Midheaven out: multiply an uncertain angle by nine and the uncertainty multiplies with it. The planets move slowly, so an approximate birth time is enough for everything the report shows.

Questions people ask

What is a harmonic chart?

The birth chart with every longitude multiplied by a chosen number. Aspects belonging to that number become conjunctions, which makes them easy to see and to judge.

Which harmonic should I look at?

The report offers three: the fifth for craft and creativity, the seventh for inspiration and longing, the ninth for meaning. Start with the fifth and the ninth — they are the two that most often say something obvious.

Are the houses in a harmonic chart meaningful?

Mostly not. The method is about which planets come together; the signs and houses of a harmonic chart are consequences of the arithmetic rather than statements in their own right.

Do I need my birth time?

An approximate one is enough. The report harmonises the planets and the Node, which move slowly, and leaves out the angles, whose error would be multiplied along with their position.