|
We will return to some additional ideas as to the relationship between the equator and the ecliptic after we introduce the third major astrological system of coordinates, that of the Horizon.
The Horizon system of coordinates represents the third and last of the spherical systems used in constructing a natal chart. In this system, the reference plane is one through the birthplace or observing point that is parallel to the horizon. The poles of this system are the Zenith (point overhead) and Nadir (point underfoot). The latitude-type coordinate in this system is called Altitude and is measured from 0° to 90° from the plane of the horizon to either pole. The longitude coordinate is called Azimuth and is measured from 0° to 360° along the horizon (for astrological use in this book), starting from the East point and moving in a counterclockwise direction through the North point and on around, in the same way that we are used to measuring houses or signs.
|
