# Category "Spherical Geometry" Page 1/1 Equatian of the Ecliptic

In calculating primary directions, it is necessary to know how the right ascension and declination of any degree of any zodiac sign are related. Equation for ASC & MC

The basis of any horoscope is the Ascendant and Midheaven degrees. In this article, we will derive the formulas for calculating these degrees. What are the Sidereal Time and RAMC?

We use the so-called sidereal time expressed in degrees when calculating primary directions. What are sidereal time and its connection with degrees? Ascension Difference Equation How to Convert Ecliptical coordinates to Equatorial And Vice Versa?

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

Spherical triangle equations are the foundation of mathematical work for an astrologer-forecaster. We will derive these functional equations here. How to Convert One Spherical Coordinate System to Another?

These equations express the coordinates of the planet in various spherical coordinates and provide a basis for calculating primary directions. What are the Ecliptic, Equatorial, and Horizontal Coordinates?

Acquaintance with the primary directions begins with an understanding of the basics of celestial geometry. Learn the basic concepts of 3D astrology. Fundamentals of Trigonometry for Practicing Astrologers

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