# All Blog Posts Page 6/6

Spherical Geometry Alexey Borealis

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

Read more →Spherical Geometry Alexey Borealis

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

Read more →Spherical Geometry Alexey Borealis

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

Read more →Spherical Geometry Alexey Borealis

These basic formulas are needed to understand the subsequent calculations of the primary directorates. Read it if you use this method.

Read more →The house cusp in the Regiomontanus system is the intersection of the major circle of position with the zodiacal plane. Here are the formulas.

Read more →Morinus considered this system the most accurate prediction system, and we agree. Find out what the Regiomontanus house system looks like in space

Read more →The celestial sphere is unevenly divided into parts by S-shaped curves in this system. Learn what it looks like and where the house cusps come from.

Read more →Celestial Geometry Alexey Borealis

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

Read more →Search the Articles