The Astrology of Space - Matrix Software

The Astrology of Space
Equatorial Coordinates
In this system, the Earth's Equator is the plane of
reference. The poles are at the intersection of the
Earth's pole and the pole of the celestial sphere, an
imaginary surface at an infinite distance with the Earth
as its center. This is true for all points on the Earth,
latitude and longitude. The poles are the North
Celestial Pole (NCP) and South Celestial Pole (SCP).
The circle at the intersection of the plane of the
Earth’s equator and the celestial sphere is the
Celestial Equator.
The great circle through the celestial poles and the
object (such as a star) is the object's Hour Circle and
the great circle which passes through the celestial
poles and the zenith is the Meridian Circle. The
coordinates in this system are given by Declination
(angle between the celestial equator and the object)
and the Right Ascension (angle measured from an
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