The tropical zodiac is based upon tropical time, or the apparent motion of the Sun across the sky over the course of a year. The tropical zodiac fixes the position of the Sun in the heavens at the northern hemisphere vernal equinox as the first point of the sign of Aries.
Using the Tropical Zodiac in Vedic Astrology
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Tropical Zodiac - Tropical zodiac assumes that the constellation of Aries is still the same. It does not change the names of the areas of the chart to reflect the movements of the constellations. This is the form of astrology that we use.
The 12 zodiac signs, measured by Earth's seasons. The sign of Aries begins at the Sun's position at the Vernal Equinox (in April). Cancer begins at the Sun's position at the Solstice (June: summer for northern hemisphere, winter for southern hemisphere).
Tropical Zodiac Zodiac that follows the path of the Sun. The First point of Aries corresponds to the vernal Equinox, not an actual star position. Also called a Philosophical Zodiac.
T-Square Configuration read article ...
~ - Zodiacal system based on the movements of the seasons, as opposed to the Sidereal Zodiac, which is based upon actual stellar positions.
~ The circle of signs that follows the apparent path of the Sun (ecliptic). also called the movable zodiac because it shifts slightly each year relative to the constellations of the sidereal zodiac. See also Precession of the Equinoxes.
The ~ is based on the relationship between the Earth and Sun. In the sidereal zodiac, the Sun's relationship to the fixed stars is primary. People using a ~ developed the body of knowledge about Moon phase gardening. Western astrologers also use this.
The ~, in contrast, is not a solely annual phenomenon, precisely because of its clear fiducial. The starting point of the Tropical 0 Aries is the Equator, which is generated by the Earth's rotation and not by its annual revolution of the Sun.
~ Standard time observed.
GMT: 11:00:00 Time Zone: 5 hours West.
Lat. and Long. of birth: 41 N 51 09 72 W 38 39 ...
Zodiacal signs beginning with the zero degree of Aries taking into account the precession of equinoxes.
Our ~ sign of Taurus, was originally the sky figure of the Bull; but now, each year, as the Sun moves through tropical Taurus (the sign, not the constellation) it is actually traveling through a skyscape of the stars of the Ram.
The ~ reflects how the changes of the seasons, of weather, and of light and dark, affect us, while the Sidereal Zodiac reveals our place among the stars, our place in the Universe.
The ~ defines the vernal point (the first day of spring in the northern hemisphere) as the first degree of Aries, but the sidereal zodiac allows it to precess. Many people are confused regarding the difference between the sidereal zodiac and the ~ signs.
In the tropical zodiac these signs coincide with the beginning of their respective seasons: spring, summer, fall, and winter. As a result of this, they are associated with the initiation of new activities.
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Why Use the Tropical Zodiac?
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To convert a Tropical zodiac into a Sidereal zodiac one needs to know the current ayanamsa and subtract it from the tropical longitudes of the planets. The most widely accepted ayanamsa in India was introduced by N.C. Lahiri. He calculates the precessional rate to be around 48 seconds per year.
When using the Tropical zodiac, archetypal energy is related to its own basic triad, the house, the sign and planet. There are two additional significators, the quality, cardinal, fixed or mutable and its element, fire, water, air and earth.
Hence, the Western Tropical Zodiac is called 'Sayan' (with Ayan) i.e., with the procession of equinoxes and the Sidereal Zodiac is called 'Nirayan' (without Ayan) where this is ignored.
Determined by the intersection with the eastern horizontal plane with the ecliptic in tropical zodiacs.
ascensional times: Similar to progressions, refers to the number of degrees that pass over the meridian (equatorial degrees) in the time that a given zodiac sign rises.
Johannes Hispalensis, writing in the 1140s, does not tie the Mansions to the tropical Zodiac, starting the first Mansion, Horns of Aries, at 16° 01' Aries, and places the previous Mansion, the Fish (Al Batn al Hut), at the end of the list but starting at 3° 09' Aries.
In the Astrology practiced here we use the Tropical Zodiac, which is the fundamental building block of Western-style Astrology and begins each year at the Vernal Equinox with zero degrees of Aries. We also use the Humanistic methods pioneered by Allen Leo, Marc Edmund Jones and Dane Rudhyar.
The planets in signs information that is being dispensed here is based on the western or tropical zodiac. The western astrological year begins around March 21 with the spring equinox. This is when the Sun enters Aries. All of the sign positions are based on this western concept.
Indian or Hindu astrology uses sidereal zodiacs which is different from the tropical zodiacs used by western system. Using tropical system makes the calculation less authentic as in the tropical system; the connection between the zodiac sign and sky constellation is broken.
When we erect a traditional chart (using the tropical Zodiac which has a measurable starting point at 0 Aries, the intersection of the ecliptic and equator), we place the planets in their longitudinal positions according to the signs.
The following information on signs is limited to the Western, tropical zodiac, since this is the type of astrology most widely practiced in the Western Hemisphere.
The ~ remains unchanged from what was seen in the skies almost 2000 years ago by the ancient Greeks, Egyptians and Babylonians.
The Sun stays in Scorpio from 16 November to 15 December as per sidereal zodiac which is followed by Vedic Astrologers and 23 October to 22 November as per Tropical Zodiac followed by Western Astrologers.
This is something that I've always found strange, but it gives a great amount of weight to the idea of the tropical zodiac where the time of year is more important than the constellation itself.
Hi Larry- Western astrology uses the tropical Zodiac, which is aligned with solstice and equinox points. Due to a phenomenon called precession, the tropical Zodiac and the constellations are no longer aligned.
The Signs, as we employ them in western Astrology, form the so called Tropical Zodiac (from the Greek word ‘trope': turning), while the Constellations are parts of the Sidereal Zodiac (from the Latin word Sidus: star). The two Zodiacs are different and are ‘used' for different purposes.
Bailey herself used the ~. In the 1980s, I saw one of her hand-typed Soul's Purpose readings. I have always found the Tropical to work in my Soul's Purpose readings.
Charts for this site are cast using Eastern Time, ~, Placidus House System, Mean Lunar Node, a 3 degree orb (small so you can see what's happening), Geocentric, unless otherwise noted.
Jyotish: Indian (Vedic) astrology. This is based on the sidereal zodiac, as opposed to the ~ favoured by most contemporary Western Astrology.
Key Words: Words that encapsulate the meaning of an astrological factor. For example, Cancer: "I feel".
Sidereal Zodiac - Zodiac based on actual positions constellations in the heavens, as opposed to the ~, which is a fixed format based on the seasons.
00 degree of Aries (the natural Ascendant of the Zodiac) and works its way counter-clockwise until it ends at 29.59.59 degrees Pisces. This is because the Western ~ aligns with the ecliptic and begins at the moment of the vernal (spring) equinox.
Competing house systems is one of the main problems in astrology from that point of view, quite apart from the problem of the sidereal versus ~s. How do we decide which house system to use, let alone which zodiac? You once said that "you should use the house system that works for you.
Valens tied the zodiac to the seasons, essentially creating the ~, which cut its tie with the stars, or Sidereal Zodiac, another difference from the Babylonian zodiac.
[The chart below is a very reasonable estimate for the moment Alan Hale first saw the comet in the region of Constellational Sagittarius (near 9+ Capricorn in the ~). Thomas Bopp also located the comet at the same, approximate time, but in Arizona rather than New Mexico.] ...
The astrological text was known as the Tetrabiblos (also know as the Quadrapartitium, or Four Books), which summarized all the astrological work produced in the past by Mesopotamians and Greeks.... Among other things it helped establish the ~ as the zodiac of the west on the basis of ...
See also: What is the meaning of Zodiac, Tropical, Tropic, Astrology, Sun?