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A horary chart may not contain an answer to the question asked, or contain an answer to something that was not asked. This is a property of radicality

Read more →Often astrologers choose the wrong planets to focus on, leading to prediction errors. Learn how to avoid these mistakes in this article.

Read more →Spherical Geometry Mark Rusborn

An essential concept in primary directions is the ascension difference. Learn how to calculate this value. This article is for prof. astrologers.

Read more →Often astrologers don't separate the context from the subject in a horary question. Moreover, they do not even know what it is. Let's illustrate it.

Read more →Spherical Geometry Mark Rusborn

Astrologers must convert zodiacal coordinates to ecliptic coordinates and vice versa when calculating primary directions. Let's derive these formulas.

Read more →Astrologers often look at a chart intuitively - first casting it, then searching for what to focus on. But in reality, it should be the opposite.

Read more →Spherical Geometry Mark Rusborn

Spherical triangle equations are the foundation of mathematical work for an astrologer-forecaster. We will derive these functional equations here.

Read more →Spherical Geometry Mark Rusborn

These equations express the coordinates of the planet in various spherical coordinates and provide a basis for calculating primary directions.

Read more →There have been a lot of talks lately about horary astrology. But not all of what has been said is true. What is horary astrology really?

Read more →Spherical Geometry Mark Rusborn

Acquaintance with the primary directions begins with an understanding of the basics of celestial geometry. Learn the basic concepts of 3D astrology.

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