Course Description

In this class students learn about a special set of considerations for determining planetary condition that were used in ancient astrology, known as the conditions of bonification and maltreatment. These seven conditions allow you to determine how a planet is functioning in a chart, and whether its significations are being affirmed and enhanced, or denied and corrupted.

The class is presented through an online course site, and is centered around a comprehensive 6.5-hour video lecture that demonstrates how to calculate, interpret, and apply the conditions of bonification and maltreatment in practice.

The material contained in this class has been extracted from part 9 of the Hellenistic Astrology Course, and is also available as part of the complete course. This class is for those who only want to study the conditions of bonification and maltreatment on their own.

Accessing the Class

The class is presented online through a private course site that each person gains access to shortly after registering. The lectures are streamed through an innovative video format that is accessible through desktops, tablets, and mobile devices.

Once registered, each student has unlimited access to the course site containing the lecture, and they are able to view the presentation at their own pace, as many times as they would like to.

Discount on the Full Hellenistic Course

When you sign up for the Bonification and Maltreatment Class you are entitled to a $45 discount on the full Hellenistic Astrology Course, if you would like to sign up for it at some point at a later date.

Registering for the Class

The price for the Bonification and Maltreatment Class is $75 USD.

To purchase the module please use the “buy now” button located below.

After completing your payment you will receive an email with your log in information for the course site, and then you can get started right away.


Chris Brennan

Chris Brennan is a professional astrologer from Denver, Colorado, USA. He specializes in ancient astrology, and is the author of the book Hellenistic Astrology: The Study of Fate and Fortune, as well as the host of the award-winning weekly show called The Astrology Podcast. He is the former President of the Association for Young Astrologers, and former Research Director of the National Council for Geocosmic Research. For more information about his work visit

Course curriculum

  • 1

    Conditions of Bonification and Maltreatment Class

    • Overview of the Class

    • Conditions of Bonification and Maltreatment Lecture

    • Prerequisite Concept: Benefic and Malefic Planets

    • Prerequisite Concept: Using Sect to Determine the Most Positive and Negative Planets in the Chart Video

    • Prerequisite Concept: A Brief Introduction to Whole Sign Houses Video

    • Four Conditions of Maltreatment

    • Enclosure and Intervention

    • Maltreatment by Engagement

    • Quiz

    • Student Discount on Other Courses