The Astrology of Space - Matrix Software

The Astrology of Space
arbitrary reference direction -- the Vernal Equinox -- to
the object's hour circle). In the above diagram, the
darker lines express the position of a star (S) in both
ecliptic and equatorial coordinates.
Equatorial Sphere – Also called the Celestial
Sphere, this is the sphere resulting from projecting the
Earth infinitely into space and it is defined by the
celestial equator and the north and south celestial
poles.
Celestial Poles – These are directly overhead the
Earth’s geographic poles and are the poles of rotation
of the celestial sphere of right ascension and
declination.
NCP – North Celestial Pole
SCP – South Celestial Pole
Celestial Equator – A great circle projected from the
Earth’s equator unto the heavens, an infinite
projection. The celestial equator has as its poles the
celestial poles and all points on the celestial equator
are equidistant from the two poles. As the Earth’s
equator rotates each day, it exposes each city on the
equator to every degree of the celestial equator.
Equinoctial – Another term for the celestial equator
(which see).
Celestial Sphere – An infinite extension of the sphere
of the Earth in space.
Hour Circles – Hour circles are great circles passing
through any celestial object and through the celestial
poles. All hour circles are at right angles to the
celestial equator.
R.A. – (See Right Ascension)
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