December 28 horoscope symbol

Sabian Symbol

But note that the Sanskrit and the name equivalents after c. Also, the "English translation" isn't usually used by English speakers. Latin names are standard English usage. The zodiacal signs are distinct from the constellations associated with them, not only because of their drifting apart due to the precession of equinoxes but also because the physical constellations take up varying widths of the ecliptic, so the Sun is not in each constellation for the same amount of time.

The zodiacal signs are an abstraction from the physical constellations, and each represent exactly one 12th of the full circle, or the longitude traversed by the Sun in about The path of the Sun passes through 13 constellations recognized by ancient Babylonian, Greek, and Roman astronomers including in Ptolemy 's Almagest [43] [44] and the modern International Astronomical Union.

Because the Babylonians had a month lunar calendar, they chose and divided up the year evenly. The 13th was left out: Ophiuchus , the bottom part of which interjects between Scorpio and Sagittarius. Occasionally this difference between the astronomical constellations and the astrological signs is mistakenly reported in the popular press as a "change" to the list of traditional signs by some astronomical body like the IAU, NASA , or the Royal Astronomical Society.

For example, in drawing a distinction between astrology and scientific astronomy, NASA notes that "No one has shown that astrology can be used to predict the future or describe what people are like based on their birth dates. Some "parazodiacal" constellations are also touched by the paths of the planets, leading to counts of up to 25 "constellations of the zodiac". Some other constellations are also mythologically associated with the zodiacal ones: Piscis Austrinus , The Southern Fish, is attached to Aquarius. In classical maps, it swallows the stream poured out of Aquarius' pitcher, but perhaps it formerly just swam in it.

Aquila , The Eagle, was possibly associated with the zodiac by virtue of its main star, Altair. The following table compares the Gregorian dates on which the Sun enters:. The theoretical beginning of Aries is the moment of vernal equinox , and all other dates shift accordingly.

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The precise Gregorian times and dates vary slightly from year to year as the Gregorian calendar shifts relative to the tropical year. Except for and , the vernal equinox has started on 20 March since , and is projected to until Because the Earth's axis is at an angle, some signs take longer to rise than others, and the farther away from the equator the observer is situated, the greater the difference.

Thus, signs are spoken of as "long" or "short" ascension. The zodiac system was developed in Babylonia , some 2, years ago, during the " Age of Aries ". Contemporary use of the coordinate system is presented with the choice of interpreting the system either as sidereal , with the signs fixed to the stellar background , or as tropical , with the signs fixed to the point vector of the Sun at the March equinox.

Western astrology takes the tropical approach, whereas Hindu astrology takes the sidereal one. This results in the originally unified zodiacal coordinate system drifting apart gradually, with a clockwise westward precession of 1.

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For the tropical zodiac used in Western astronomy and astrology, this means that the tropical sign of Aries currently lies somewhere within the constellation Pisces " Age of Pisces ". The sidereal coordinate system takes into account the ayanamsa , ayan meaning transit or movement , and amsa meaning small part , i. It is unclear when Indians became aware of the precession of the equinoxes, but Bhaskara 2 's 12th-century treatise Siddhanta Shiromani gives equations for measurement of precession of equinoxes, and says his equations are based on some lost equations of Suryasiddhanta plus the equation of Munjaala.


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The discovery of precession is attributed to Hipparchus around BC. Ptolemy quotes from Hipparchus' now lost work entitled "On the Displacement of the Solstitial and Equinoctial Points" in the seventh book of his 2nd century astronomical text, Almagest , where he describes the phenomenon of precession and estimates its value. The principle of the vernal point acting as the first degree of the zodiac for Greek astronomers is also described in the 1st century BC astronomical text of Geminus of Rhodes.

Geminus explains that Greek astronomers of his era associate the first degrees of the zodiac signs with the two solstices and the two equinoxes, in contrast to the older Chaldean Babylonian system, which placed these points within the zodiac signs. Ptolemy also demonstrates that the principle of the tropical zodiac was well known to his predecessors within his astrological text, the Tetrabiblos , where he explains why it would be an error to associate the regularly spaced signs of the seasonally aligned zodiac with the irregular boundaries of the visible constellations:. These events can be useful, for example, to estimate the cross-sectional dimensions of a minor planet , or check a star for a close companion.

The Sun's placement upon the vernal equinox, which occurs annually around 21 March, defines the starting point for measurement, the first degree of which is historically known as the " first point of Aries ". Zodiac signs have never been used to determine the boundaries of astronomical constellations that lie in the vicinity of the zodiac, which are, and always have been, irregular in their size and shape. The use of the zodiac as a means to determine astronomical measurement remained the main method for defining celestial positions by Western astronomers until the Renaissance, at which time preference moved to the equatorial coordinate system , which measures astronomical positions by right ascension and declination rather than the ecliptic-based definitions of celestial longitude and celestial latitude.

The word "zodiac" is also used in reference to the zodiacal cloud of dust grains that move among the planets, and the zodiacal light that originates from their scattering of sunlight. In Unicode, the symbols of zodiac signs are encoded in block "Miscellaneous Symbols": [53]. From Wikipedia, the free encyclopedia. This is the latest accepted revision , reviewed on 5 October For the East Asian zodiac based on the Jovian orbital cycle, see Chinese zodiac.

For other uses, see zodiac disambiguation. Further information: Former constellations. Further information: Babylonian star catalogues and MUL. Main article: Astrological sign. Further information: Axial precession , Epoch astronomy , Sidereal and tropical astrology , Astrological age , and Ayanamsa. Astronomical symbols Chinese zodiac Circle of stars Cusp astrology Elements of the zodiac. Oxford Dictionaries. Oxford University Press. Retrieved 19 September The Signs of the Zodiac. Wilcox, London, p. See also Lankford, John; Rothenberg, Marc History of Astronomy: An Encyclopedia. The Almagest.

Translated and annotated by G. Toomer ; with a foreword by Owen Gingerich. The introduction of the uniform zodiac", Archive for History of Exact Sciences , 64 6 : —, doi : The Mesopotamian traditions. Astronomical Data Service. Page Lennart Geminos's Introduction to the Phenomena. Princeton University Press.

December 28 Zodiac Birthday Horoscope Personality

Ptolemy's Tetrabiblos. Astrology Classics. Project Hindsight. Retrieved 4 July Hinduism: An Alphabetical Guide. Penguin Books India. London: Board of Longitude, Patrick Grim ed. Philosophy of science and the occult. Ptolemy's Catalogue of Stars: a revision of the Almagest. Carnegie Institution of Washington, Catesby Taliaferro ed. Ptolemy refers to the constellation as Septentarius "the serpent holder". October This sign is flexible, and consequently, agile too. These are people who are both physically and morally strong, but very difficult to please!

The House is generous and welcoming. This sign likes other people, and seeks to find balance with its soul mate. House signs are rarely on their own, and find their place among family and in a routine. This sign's planet is Saturn and its divinity is Tepeyolohti. In Aztec culture, this animal represents vivacity rather than laziness. It handles any situation and is incredibly resistant! People of this sign are very prudent when confronting an obstacle.

Snake signs are spontaneous, and often act without reason. Their reactions can often be surprising. In the story of humanity, the snake symbolises reconciliation between Heaven and Earth.

This sign also represents laziness! Death is word given to man; language, law, ethics. People of this sign are often introverts, who are not able to free themselves from the gaze of others. Life with a House sign will make a Death sign happy, and bring them self-confidence. It is also synonymous with shyness, tenacity, and being a dreamer. People of this sign are also highly sociable. The Rabbit enjoys life's pleasures. Delicate and timid, this sign hates conflict. People of this sign make for pleasant company, always smiling and hard-working. They are also prone to anguish and like to have control over their lives.

In Aztec Astrology, it is also a symbol of worry, anguish and instability. Water signs are incredibly sensitive people, whose planet is Mars and divinity Xiuhtecuhtli. People of this sign are generous and ready to do anything to help and feel useful! They are really brave and highly intuitive, but also very shy. Their planet is Mars and divinity Mictlantecuhtli.

People of this sign are modest, charming, and able to adapt to any situation. According to Aztec tradition, the Monkey gave man fire out of love and compassion. This sign's planet is Mars and its divinity Xochipilli. It is one of the most mysterious signs in Aztec Astrology. Sometimes it represents good news, and other times it represents trials that must be overcome. It is a sign of sensitivity and resistance.

This sign is a symbol of paradise on Earth, since it is in Atlantic surroundings that traditional reeds grow! The reed symbolises gaiety, optimism and life's most simple pleasures. This sign's planet is Jupiter and its divinities are Tezcatlipoca and Itzlacoliuhqui. The Ocelot is gifted with great strength of character, and can easily become aggressive. People of this sign can be calmed by the presence of a Flower or Monkey sign. It represents strength, virility and courage. Eagle signs have lucid minds, and are blessed with constantly renewed energy.

They are capable of making it through the dark and finding their way back to the light.

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This sign's planet is the Sun and its divinity Xipe Totec. In Aztec Astrology, this is a positive sign, synonymous with good health, long life, and also responsibilities! People of this sign make gifted businessmen and women, who move directly and calmly towards their goals. People of this sign are wise and cautious, with a sense of justice. They are overflowing with imagination, and are daring and highly energetic. People of this sign are thorough, law-abiding and moral.

Clay signs do not like lies; they believe in justice. They are often authoritarian, and move through life without ever complaining! This sign's planet is Mercury, and its divinities are Tezcatlipoca and Chalchiuhtotolin. Rain signs are passionate; they like acting on their whims, and let themselves be guided by their impulses. People of this sign are also quite versatile!