Natal Chart
Arabic Parts
Lots · The Al-Biruni Tradition
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Arabic parts (lots) are sensitive points derived arithmetically from three chart factors; the best known is the Part of Fortune. Maxis computes 25 lots and applies the day/night (sect) reversal rule correctly for each one.
25 Al-Biruni lots calculated from your natal chart.
For those who want to understand themselves and their personal chart in depth.
Date, time, place
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Frequently Asked Questions
What is an Arabic part (lot)? ›
A mathematical point usually derived as "Ascendant + planet A − planet B". It is not a physical body; it is read as the focal point of a specific life theme in the chart.
How is the Part of Fortune calculated? ›
By day: Ascendant + Moon − Sun; by night the formula reverses to Ascendant + Sun − Moon. Day or night is decided by whether the Sun is above or below the horizon.
Why does the day/night rule matter? ›
Classical sources reverse many lot formulas for night births; skipping the rule can misplace a lot by up to 60 degrees. Maxis applies each lot’s reversal rule per the classical sources.
Which lots are calculated? ›
Twenty-five classical lots, led by the Parts of Fortune and Spirit, covering themes such as marriage, children, career and illness — each listed with its formula and exact degree.
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