Pullen SR

The house system Pullen Sinusoidal Ratio determines the house sizes from a sinus function depending on the size of the quadrants. You can find more detailed information on the mathematical process in the Documentation of the Swiss Ephemeris, chapter 6.1.5.4.

The house system was invented in 2016 by the American astrologer Walter Pullen (born 1971), the author of the astrology software Astrolog, and should replace the house system Pullen SD.

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