This course is required for the Diploma program.

Course name: M100: Chart Calculation  

Instructors: Enid Newberg  

Course length: 10-Weeks (self-directed course with a live 1-1/2-hour class each week) 

Course cost: $

Required Books:

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

-Midnight Ephemeris for the 20th Century. 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 Compiled and Programmed by Thomas G. Shanks 

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

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 sessions.

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 tutoring.

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 cusps

4.    Review and completion of House cusps

5.    Adding in the Planets

6.    Review and calculate Planetary Declination

7.    Equatorial Ascendant and Vertex

8.    Secondary progressions and solar arc direction

9.    Solar and Lunar Returns

10. Techniques related to the chart circle

11. Final Exam – start to finish


Instructor bios:

Enid Newberg, MA Whole Systems Design. Enid has been a librarian, astrologer, childbirth educator, paralegal, IT and web developer and trainer, entrepreneur, administrator, and teacher.

In 1993, Enid became involved in the dream of creating an academic college where astrology would be openly taught and joined the board of Kepler College. She was president of the College as it opened from 2000-2001 and again from 2007-2019. In 2013, her interest in preserving and expanding an understanding of our astrological heritage led her to help establish the Alexandria iBase Project.

Enid particularly enjoys introducing students to the dynamic aliveness of an astrological chart. She is also fascinated by astrology's history and philosophy as well as its intersection with magic, spirituality, and culture. She loves to teach and use astrology to help clients find creative insights.

Enid is an instructor in:

  • The Bridge Course for Astrological Fundamentals 
  • E520A Psyche and Soul: The Astrology of Identity and Character
  • E520B Astrologies of Soul: Calling and Vocation
  • E520C The Recurring and Evolving Soul 2nd ed.
  • M100 Chart Construction
  • W101 Fundamentals I: Introduction
  • W102 Fundamentals II: Interpretation Tools