SIDEREALZODIAC(FIXEDZODIAC)
The zodiac is the belt constituted by the 12 signs—Aries, Taurus, Gemini, Cancer,
Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces. The names of
the signs correspond with a belt of 12 constellations ringing our solar system that, sev-
eral thousand years ago, gave their names to the zodiac. The sidereal zodiac, also
referred to as the fixed zodiac, is located where these constellations are actually posi-
tioned. Practitioners of Hindu astrology are the most notable users of the sidereal sys-
tem. The other zodiac originated with Ptolemy, the great astrologer-astronomer of
antiquity, who was very careful to assert that the zodiac should begin at (i.e., 0° Aries
should be positioned at) the point where the Sun is located during the spring equinox.
Because of the phenomenon known as the precession of equinoxes, this point very
gradually moves backward every year; currently, 0° Aries is located near the beginning
of the constellation Pisces. Astrologers who adhere to the Ptolemaic directive—the
great majority of modern Western astrologers—use the tropical zodiac (also called the
moving zodiac, for obvious reasons). The sidereal zodiac, however, has become
increasingly popular in the West over the last decade or so.
The question of which zodiac to use is more involved than might be initially
imagined. When the astrological novice first encounters this issue, the initial tenden-
cy is to think that the zodiac should correspond with the constellations; why, after all,
should one keep shifting the zodiac just because Ptolemy said to? There is more at
stake, however, than the authority of Ptolemy. For example, much seasonal symbolism
is associated with the signs: Ever-youthful, pioneering Aries is the sign of spring; cold,
restrictive Capricorn is the sign of winter; and so forth. In the tropical zodiac the signs
are congruent with the seasons; in the sidereal zodiac these associations are lost. A
siderealist, on the other hand, could make the observation that in the Southern
Hemisphere, where the seasons are reversed, these associations are meaningless any-
way (unless the zodiac is shifted 180° in southern latitudes—a highly problematic but
nevertheless logically possible response). There is thus no decisive argument favoring
one system over the other.
Some attempts to resolve this problem have been made by assigning different
significances to the two zodiacs: The tropical zodiac, some have argued, provides a
“map” of the personality (the outer self), whereas the sidereal zodiac provides a chart
of the soul (the inner self). Other astrologers, most notably James T. Braha in his
Ancient Hindu Astrology for the Modern Western Astrologer,have argued that Western,
tropical astrology has better tools for analyzing the psyche, but Hindu astrology (the
principal form of sidereal astrology) works better in the area of predicting future con-
ditions. Neither of these attempts at reconciliation is likely to become widely accept-
ed. Nor does it seem likely that either zodiac will supplant the other, at least not in the
foreseeable future.
Sources:
Braha, James T. Ancient Hindu Astrology for the Modern Western Astrologer.Hollywood, FL: Her-
metician Press, 1986.
Brau, Jean-Louis, Helen Weaver, and Allan Edmands. Larousse Encyclopedia of Astrology.New
York: New American Library, 1980.
THEASTROLOGYBOOK [613]
Sidereal Zodiac (Fixed Zodiac)