Zodiac in the context of "Astronomical"

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⭐ Core Definition: Zodiac

The zodiac is a belt-shaped region of the sky that extends approximately 8° north and south celestial latitude of the ecliptic – the apparent path of the Sun across the celestial sphere over the course of the year. Within this zodiac belt appear the Moon and the brightest planets, along their orbital planes. The zodiac is divided along the ecliptic into 12 equal parts, called "signs", each occupying 30° of celestial longitude. These signs roughly correspond to the astronomical constellations with the following modern names: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces.

The signs have been used to determine the time of the year by identifying each sign with the days of the year the Sun is in the respective sign. In Western astrology, and formerly astronomy, the time of each sign is associated with different attributes. The zodiacal system and its angular measurement in 360 sexagesimal degree (°) originated with Babylonian astronomy during the 1st millennium BC, probably during the Achaemenid Empire. It was communicated into Greek astronomy by the 2nd century BC, as well as into developing the Hindu zodiac. Due to the precession of the equinoxes, the time of year that the Sun is in a given constellation has changed since Babylonian times, and the point of March equinox has moved from Aries into Pisces.

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Zodiac in the context of Lamassu

Lama, Lamma, or Lamassu (Cuneiform: 𒀭𒆗, an.kal; Sumerian: lammař; later in Akkadian: lamassu; sometimes called a lamassuse) is a Mesopotamian protective deity.

Initially depicted as a goddess in Sumerian times, when it was called Lamma, it was later depicted from Assyrian times as a hybrid of a human, bird, and either a bull or lion—specifically having a human head, the body of a bull or a lion, and bird wings, under the name Lamassu. In some writings, it is portrayed to represent a goddess. A less frequently used name is shedu (Cuneiform: 𒀭𒆘, an.kal×bad; Sumerian: alad; Akkadian, šēdu), which refers to the male counterpart of a lamassu. Lamassu represent the zodiacs, parent-stars or constellations.

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Zodiac in the context of Julius Schiller

Julius Schiller (c. 1580 – 1627) was a lawyer from Augsburg who, like his fellow citizen and colleague Johann Bayer, published a star atlas in celestial cartography.

In the year of his death, Schiller, with Bayer's assistance, published the star atlas Coelum Stellatum Christianum which replaced the pagan names of constellations with biblical and early Christian figures. Specifically, Schiller replaced the zodiacal constellations with the twelve apostles, the northern constellations by figures from the New Testament, and the southern constellations by figures from the Old Testament.

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Zodiac in the context of Coelum stellatum christianum

The Coelum Stellatum Christianum is a star atlas published in 1627 by Julius Schiller (c. 1580–1627), with the collaboration of Johann Bayer (1572–1625). In the treatise, which was published by Andreas Aperger at Augsburg during the same year as Schiller's death, pagan constellations were replaced with biblical figures and Christian motifs. Schiller replaced the zodiac constellations with the Twelve Apostles, the northern constellations with New Testament figures, and the southern constellations with Old Testament figures.

The planets, the Sun, and the Moon were also replaced by biblical figures:

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Zodiac in the context of Sagittarius (constellation)

Sagittarius is one of the constellations of the zodiac and is located in the Southern celestial hemisphere. It is one of the 48 constellations listed by the 2nd-century astronomer Ptolemy and remains one of the 88 modern constellations. Its old astronomical symbol is (♐︎). Its name is Latin for "archer". Sagittarius is commonly represented as a centaur drawing a bow. It lies between Scorpius and Ophiuchus to the west and Capricornus and Microscopium to the east.

The center of the Milky Way lies in the westernmost part of Sagittarius (see Sagittarius A).

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Zodiac in the context of Scorpius

Scorpius is a zodiac constellation located in the Southern celestial hemisphere, where it sits near the center of the Milky Way, between Libra to the west and Sagittarius to the east. Scorpius is an ancient constellation whose recognition predates Greek culture; it is one of the 48 constellations identified by the Greek astronomer Ptolemy in the second century.

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Zodiac in the context of Twenty-eight mansions

The Twenty-Eight Mansions (Chinese: 二十八宿; pinyin: Èrshíbā Xiù), also called xiu or hsiu, are part of the Chinese constellations system. They can be considered as the equivalent to the zodiacal constellations in Western astronomy, though the Twenty-eight Mansions reflect the movement of the Moon through a sidereal month rather than the Sun in a tropical year.

The lunar mansion system was in use in other parts of East Asia, such as ancient Japan; the Bansenshūkai, written by Fujibayashi Yasutake, mentions the system several times and includes an image of the twenty-eight mansions.

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Zodiac in the context of Ecliptic

The ecliptic or ecliptic plane is the orbital plane of Earth around the Sun. It was a central concept in a number of ancient sciences, providing the framework for key measurements in astronomy, astrology and calendar-making.

From the perspective of an observer on Earth, the Sun's movement around the celestial sphere over the course of a year traces out a path along the ecliptic against the background of stars – specifically the Zodiac constellations. The planets of the Solar System can also be seen along the ecliptic, because their orbital planes are very close to Earth's. The Moon's orbital plane is also similar to Earth's; the ecliptic is so named because the ancients noted that eclipses only occur when the Moon is crossing it.

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Zodiac in the context of Astrological age

An astrological age is a time period which, according to astrology, parallels major changes in the development of human society, culture, history, and politics. There are twelve astrological ages corresponding to the twelve zodiacal signs in western astrology. One cycle of the twelve astrological ages is called a Great Year, comprising 25,772 solar years, at the end of which another cycle begins.

Some astrologers believe that during a given age, some events are directly caused or indirectly influenced by the astrological sign associated with that age, while other astrologers believe that astrological ages do not influence events in any way.

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