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Solar Arc Directions

In Solar Arc directions, the Sun's progression (approximately 1° per year) is added to all natal planet positions.

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About This Tool

Solar arc direction advances every point of the chart by the Sun’s secondary-progressed arc — roughly one degree per year of life. It moves slowly but delivers sharp timing when a directed point reaches an exact aspect.

What it does

Every planet advances one degree per year — a lifetime of directed charts.

Who it’s for

For those examining a specific period, year, or life cycle.

What you need

Date, time, place

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Frequently Asked Questions

What is solar arc direction?

Rotating every planet and point of the birth chart by the Sun’s progressed motion — approximately age × 1°. When a directed point aspects a natal point, an important period is marked.

How is it different from secondary progression?

In progressions each planet moves at its own speed; in solar arc everything moves by the same arc. That lets even the slow planets "move" meaningfully.

What orb is used?

Tradition keeps solar arc orbs very tight: usually 1 degree, at most 1.5. The year the aspect is exact is treated as the peak period.

How much time does one degree represent?

About one year. A directed planet sitting 2 degrees from a natal point is therefore read as "roughly two years from now".

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