CATEGORY: Summer 2023-2024

R110 – Chart Calculation – Summer 2023-24

Course Access: Lifetime
Course Overview

This course is required for the Diploma

Required Books:

Simply Math by Lauren Fowks and Lynn Sellon
– you can probably find this most easily on Amazon

-Midnight Ephemeris for the 20th
Find one that has declinations if possible. 
You can find an online version at

-Book of Tables. The
examples used will refer to the Michelsen Book of Tables, but any book or
tables for Placidus House system will work 
You can find an online version at

Suggested Books:

The American Atlas, US Longitudes &
Latitudes Time Changes, and Time Zones 
Compiled and
Programmed by Thomas G. Shanks 

The American Atlas, World Longitudes
& Latitudes Time Changes, and Time Zones 
and Programmed by Thomas G. Shanks 

Under the Resources link,
you will find PDFs to download that you will need for the various

Optional Book (another perspective on the
math): Scofield, Bruce. Astrological Chart Calculations: History,
Conventions, and Methodologies, 
One Reed Publications, MA. 2018.

Pre-requisite: none

Course description:

Chart calculation can pretty daunting. This course
helps make it easier by combining reading, live lectures, and group practice

There is a trade-off in having the benefit of
computers to calculate and construct an astrological chart. This guided
independent study course gives students a deeper understanding of how the chart
relates to the movements of the earth and sky, which aids chart interpretation.

The first portion of this course covers the process
of calculating a natal chart. Students will learn to calculate charts from time
zones around the world, as well as in both the Northern and Southern
hemispheres. The second portion of the course adds additional calculation
techniques, including the lots.

The course is organized for independent
self-study and with live meetings during the term for students to directly ask
questions and go over the material. Students can also request 1-hour of private

Use this course if you intend to take the
organizational exams. complete the Professional Diploma or simply want to know
more about how a chart is actually calculated. You may find it helpful to
complete E400 Astronomy for Astrologers before taking this course. 

Weekly topics:

  1. The basics of working with time
  2. Getting started on house cusps
  3. The Ascendant and intermediary House
  4. Review and completion of House cusps
  5. Adding in the Planets
  6. Review and calculate Planetary
  7. Equatorial Ascendant and Vertex
  8. Secondary progressions and solar arc
  9. Solar and Lunar Returns
  10. Techniques
    related to the chart circle
  11. Final
    Exam – start to finish

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