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Astronomy for Astrologers

Planet Longitude and Latitude

Examine the diagram until you understand the following:

1. The plane of the ecliptic (the orbital plane of Earth) is
   different from the orbital plane of, for example, Pluto.


2. However, both planes pass through the Sun center.


3. While the orbits of two planets are, in distance, larger
   and smaller, the planes of the orbits ignore this distance
   factor and are considered as "infinite."


4. These planes are inclined one to another by an angle
   or inclination. This is shown, here, by the plane of the
   earth's orbit (horizontal) and the plane of Pluto's orbit,
   which is inclined or tilted at an angle to it.


5. The orbital plane of Pluto intersects the orbital plane
   of the Earth (ecliptic) at two points, called the 'nodes'.