top of page

ISAR Member Forum

Public·1027 Astrologers

Calculated Astrology

Calculated Astrology is the use of mathematical formulas involving zodiacal positions—degrees and minutes—to derive specific astrological points for interpretation. These calculations may combine planets, house cusps, the Ascendant, and other chart factors.


For example:


Cusp of the 9th House + Saturn − Moon

→ interpreted within a particular astrological system in relation to trauma, pain, punishment, or suffering.


Ascendant + Jupiter − Sun

→ interpreted as a calculated point associated with medicine, treatment, healing, or medical matters.


When the calculation follows the structure


A + B − C


the resulting point is generally called a Lot or Arabic Part (also historically called a Part). The best-known example is the Lot of Fortune.


So, “astrological calculation” is the broader term, while “calculation of Lots/Arabic Parts” is more precise when referring specifically to formulas of this type.

162 Views

If we examine the entire set of variances across all possible points, is the observed phenomenon statistically random or truly well-founded? Was the analysis limited to the 9th house or solely to Saturn? I am interested because, as of now, there are no evaluable results—neither mathematical nor statistical. What bothers me is the lack of verification in this line of reasoning. After all, even in this context, there ought to be multiple calculation methods available—at the very least, an equation involving two unknowns

Events

  • 21 Nov Sat | 'All Things Uranus!'

  • 25 Oct Sun | 'Astrology, Psychology and the VUCA World // Astrología, psicología y el mundo VUCA'

ABOUT US >

The International Society for Astrological Research (ISAR) brings together astrologers from all over the world, in a collective effort to advance our ever-evolving field. Our diverse membership includes some of the most highly respected astrologers, known for their extensive contributions and scholarship, as well as seasoned consulting astrologers, writers, researchers, magicians, scholars, and enthusiasts from every corner of the globe. Become a member today, and join us in bringing together rich astrological tradition with new ideas, insights, and developments.

© 2026 by International Society for Astrological Research, Inc.

bottom of page