Западная астрология: история и современное состояние.

In Western astrology, astrological signs are the twelve 30 degree sectors that make up Earth's 360 degree orbit around the Sun. The signs enumerate from the first day of spring, known as the First Point of Aries, which is the vernal equinox. The astrological signs are Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces. The Western zodiac originated in Babylonian astrology, and was later influenced by the Hellenistic culture. Each sign was named after a constellation the sun annually moved through while crossing the sky. This observation is emphasized in the simplified and popular sun sign astrology. Over the centuries, Western astrology's zodiacal divisions have shifted out of alignment with the constellations they were named after by axial precession of the Earth while Hindu astrology measurements correct for this shifting. Astrology (i. e. a system of omina based on celestial appearances) was developed in Chinese and Tibetan cultures as well but these astrologies are not based upon the zodiac but deal with the whole sky. Astrology is a pseudoscience. Scientific investigations of the theoretical basis and experimental verification of claims have shown it to have no scientific validity or explanatory power. More plausible explanations for the apparent correlation between personality traits and birth months exist, such as the influence of seasonal birth in humans. According to astrology, celestial phenomena relate to human activity on the principle of "as above, so below", so that the signs are held to represent characteristic modes of expression. Scientific astronomy used the same sectors of the ecliptic as Western astrology until the 19th century. Various approaches to measuring and dividing the sky are currently used by differing systems of astrology, although the tradition of the Zodiac's names and symbols remain mostly consistent. Western astrology measures from Equinox and Solstice points (points relating to equal, longest, and shortest days of the tropical year), while Hindu astrology measures along the equatorial plane (sidereal year).

Western astrology is a direct continuation of Hellenistic astrology as recorded in Ptolemy's Tetrabiblos in the 2nd century. Hellenistic astrology in turn was partly based on concepts from Babylonian tradition. Specifically, the division of the ecliptic in twelve equal sectors is a Babylonian conceptual construction. This division of the ecliptic originated in the Babylonian "ideal calendar" found in the old compendium MUL. APIN and its combination with the Babylonian lunar calendar, represented as the "path of the moon" in MUL. APIN. In a way, the zodiac is the idealisation of an ideal lunar calendar. By the 4th century BC, Babylonian astronomy and its system of celestial omens influenced the culture of ancient Greece, as did the astronomy of Egypt by late 2nd century BC. This resulted, unlike the Mesopotamian tradition, in a strong focus on the birth chart of the individual and the creation of Horoscopic astrology, employing the use of the Ascendant (the rising degree of the ecliptic, at the time of birth), and of the twelve houses. Association of the astrological signs with Empedocles' four classical elements was another important development in the characterization of the twelve signs. The body of the Hellenistic astrological tradition as it stood by the 2nd century is described in Ptolemy's Tetrabiblos. This is the seminal work for later astronomical tradition not only in the West but also in India and the Islamic sphere and has remained a reference for almost seventeen centuries as later traditions made few substantial changes to its core teachings.

In Western astrology, the polarity divides the zodiac in half and refers to the alignment of a sign's energy as either positive or negative, with various attributes associated to them as a result. Positive polarity signs, also called active, yang, expressive, or masculine signs, are the six odd numbered signs of the zodiac: Aries, Gemini, Leo, Libra, Sagittarius, and Aquarius. Positive signs make up the fire and air triplicities. Negative polarity signs, also called passive, yin, receptive, or feminine signs, Since each modality comprehends four signs, they are also known as Quadruplicities. +Modalities of astrological signs Modality 3 primes Alt. symbols Keywords Fire signs Water signs Air signs Earth signs Cardinal Action, dynamic, initiative, great force Aries Cancer Libra Capricorn Fixed Resistance to change, great willpower, inflexible Leo Scorpio Aquarius Taurus Mutable Adaptability, flexibility, resourcefulness Sagittarius Pisces Gemini Virgo

Each sign can be divided into three 10° sectors known as decans or decanates, though these have fallen into disuse. The first decanate is said to be most emphatically of its own nature and is ruled by the sign ruler. The next decanate is sub ruled by the planet ruling the next sign in the same triplicity. The last decanate is sub ruled by the next in order in the same triplicity. While the element and modality of a sign are together sufficient to define it, they can be grouped to indicate their symbolism. The first four signs, Aries, Taurus, Gemini, and Cancer, form the group of personal signs. The next four signs, Leo, Virgo, Libra, and Scorpio form the group of interpersonal signs. The last four signs of the zodiac, Sagittarius, Capricorn, Aquarius, and Pisces, form the group of transpersonal signs. Dane Rudhyar presented the tropical zodiac primary factors, used in the curriculum of the RASA School of Astrology. The tropical zodiac is the zodiac of seasonal factors as opposed to the sidereal zodiac (constellation factors). The primary seasonal factors are based on the changing ratio of sunlight and darkness across the year. The first factor is whether the chosen time falls in the half of the year when daylight is increasing, or the half of the year when darkness is increasing. The second factor is whether the chosen time falls in the half of the year when there is more daylight than darkness, or the half when there is more darkness than daylight. The third factor is which of the four seasons the chosen time falls in, defined by the first two factors. Thus
The spring season is when daylight is increasing and there is more daylight than darkness. The summer season is when darkness is increasing and there is more daylight than darkness. The autumn season is when darkness is increasing and there is more darkness than daylight. The winter season is when daylight is increasing and there is more darkness than daylight.

In Indian astrology, there are five elements: fire, earth(Land), air, water, and ether. The master of fire is Mars, while Mercury is of land, Saturn of air, Venus of water, and Jupiter of ether. Jyotisha recognises twelve zodiac signs (Rāśi), that correspond to those in Western astrology. The relation of the signs to the elements is the same in the two systems.

A nakshatra (Devanagari: नक्षत्र, Sanskrit nakshatra, a metaphorical compound of naksha 'map/chart', and tra 'guard'), or lunar mansion, is one of the 27 divisions of the sky identified by prominent star(s), as used in Hindu astronomy and astrology (Jyotisha). "Nakshatra" in Sanskrit, Kannada, Tulu and Tamil and Prakrit also, thus, it refers to stars themselves.

Chinese astrological signs operate on cycles of years, lunar months, and two hour periods of the day (also known as shichen). A particular feature of the Chinese zodiac is its operation in a 60 year cycle in combination with the Five Phases of Chinese astrology (Wood, Fire, Metal, Water and Earth). Nevertheless, some researches say that there is an obvious relationship between the Chinese 12 year cycle and zodiac constellations: each year of the cycle corresponds to a certain disposal of Jupiter. For example, in the year of Snake Jupiter is in the Sign of Gemini, in the year of Horse Jupiter is in the Sign of Cancer and so on. So the Chinese 12 year calendar is a solar lunar jovian calendar.