Primary Directions Tests and Comparisons

Primary Directions Tests and Comparisons – tropical and sidereal.

Updated 11th August 2023.

Please note that all AC views, procedures, modules are subject to change without notice. But every effort will be made to bring PD’s to AC asap as described here.

AC will have PD directions through the bounds, aka Egyptian terms to the ASC, and directions to the Desc and IC. Currently not shown in any AC screenshot.

Here’s an excellent introduction to Primary Directions.

Astrological Predictive Techniques | Primary Directions | 1. Ascensions and Bounds

This post shows AC’s primary direction calculations in comparison with :

• Valens (Mac)

• Morinus (Windows)

• Astro.com (internet)

• Astro Gold ver 9 (Windows)

Note Valens and Morinus invariably agree in their results as Valens is a slimmed-down version of Morinus.

Example Chart: King Charles III, aka Prince Charles: Tropical. Placidus cusps

Note that all King Charles III charts have their lat and long adjusted to match the Astro.com chart so that comparisons are geographically valid.

AC Chart

Solar Fire Chart

 

Speculum (natal) comparison (especially for Asc, MC), with lat and longitude as per astro.com, 51°N30’00” 00°W10’00” :

Astrodatabank

King Charles III

Valens speculum

AstroConnexions Speculum

 

Primary Direction, Saturn Trine MC, promissor no latitude, calculation results comparison

Valens results

AC results

Primary Direction, Saturn Trine MC, with promissor latitude, calculation results comparison

AC results

Valens results

Latest AC PD view

Promissor’s directed to the ASC. No latitude. Added 39 secs to birth date

AC

 

Morinus (MS Windows) comparison:

 

 

 

Moon aspects to King Charles III – direct and converse

 

 

Valens results

 

Interplanetary PD aspects – Tropical

Valens PD Mercury aspects to Mars – Einstein

 

AC Mercury aspects to Mars – Einstein

 

PD Terms as Promissors to ASC

Einstein PD terms to Asc – Morinus (Windows) – Direct

 

AC Einstein PD Terms to Asc – Direct

Einstein PD terms to Asc – Morinus (Windows) – Converse

AC Einstein Terms to Asc – Converse

Sidereal Examples, Sassanian ayanamsha

AC Allen Ginsberg Sidereal PD terms to Asc and Desc

Morinus – Ginsberg Sidereal PD terms to Asc and Desc

 

Calculating Terms as Promissors – tropical. for King Charts III.

If the terms are not shown in the chart:

 

Show terms

Results:

 

Sidereal Interplanetary Aspects, Sassanian ayanamsha

King Charles III, Jupiter aspecting Moon

Morinus results