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Almagest

Index Almagest

The Almagest is a 2nd-century Greek-language mathematical and astronomical treatise on the apparent motions of the stars and planetary paths, written by Claudius Ptolemy. One of the most influential scientific texts of all time, its geocentric model was accepted for more than 1200 years from its origin in Hellenistic Alexandria, in the medieval Byzantine and Islamic worlds, and in Western Europe through the Middle Ages and early Renaissance until Copernicus. [1]

101 relations: Abu al-Wafa' Buzjani, Al-Kharaqī, Al-Ma'mun, Alfonso X of Castile, Alpha Centauri, Ammonius Hermiae, Ancient Greek, Ancient Greek astronomy, Annapolis, Maryland, Antoninus Pius, Apollonius of Perga, Apparent magnitude, Apparent retrograde motion, Apsis, Arabic, Aristotle, ASCII, Astronomy in the medieval Islamic world, Atmospheric refraction, Axial precession, Basilios Bessarion, Bibliothèque nationale de France, Book of Fixed Stars, Byzantine Empire, Caliphate, Cambridge University Press, Canopus, Egypt, Celestial cartography, Celestial spheres, Centaurus, Chord (geometry), Christian Heinrich Friedrich Peters, Classical planet, Constellation, Cosmology, Deferent and epicycle, Eclipse, Ecliptic, Ecliptic coordinate system, Edward Knobel, Equant, Equinox, Fixed stars, Geocentric model, George of Trebizond, Gerald J. Toomer, Gerard of Cremona, Gnomon, Great Books of the Western World, Greek mathematics, ..., Guillaume Postel, Henry Aristippus, Hipparchus, History of Alexandria, Islamic Golden Age, Johan Ludvig Heiberg (historian), Jupiter, Königsberg, Koine Greek, Latin, Latitude, Logarithmic scale, Mars, Martianus Capella, Mercury (planet), Middle Ages, Moon, Moors, Nicholas Halma, Nicolaus Copernicus, Olaf Pedersen, Ottoman Empire, Oxford University Press, Pappus of Alexandria, Parallax, Photodetector, Planet, Plato, Pope Nicholas V, Precession, Ptolemy, Ptolemy's table of chords, R. Catesby Taliaferro, Regiomontanus, Renaissance, Sahl ibn Bishr, Saturn, Solstice, Spherical trigonometry, St. John's College (Annapolis/Santa Fe), Star, Star catalogue, State Library of Victoria, Sun, Theon of Alexandria, Three-dimensional space, Toledo School of Translators, Trigonometry, University Press of Southern Denmark, Venus, Zodiac. Expand index (51 more) »

Abu al-Wafa' Buzjani

Abū al-Wafāʾ, Muḥammad ibn Muḥammad ibn Yaḥyā ibn Ismāʿīl ibn al-ʿAbbās al-Būzjānī or Abū al-Wafā Būzhjānī (ابوالوفا بوزجانی or بوژگانی) (10 June 940 – 15 July 998) was a Persian mathematician and astronomer who worked in Baghdad.

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Al-Kharaqī

Abū Muḥammad 'Abd al-Jabbār al-Kharaqī, also Al-Kharaqī was a Persian astronomer and mathematician of the 12th century, born in Kharaq near Merv.

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Al-Ma'mun

Abu al-Abbas al-Maʾmūn ibn Hārūn al-Rashīd (أبو العباس المأمون; September 786 – 9 August 833) was the seventh Abbasid caliph, who reigned from 813 until his death in 833.

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Alfonso X of Castile

Alfonso X (also occasionally Alphonso, Alphonse, or Alfons, 23 November 1221 – 4 April 1284), called the Wise (el Sabio), was the King of Castile, León and Galicia from 30 May 1252 until his death in 1284.

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Alpha Centauri

Alpha Centauri (α Centauri, abbreviated Alf Cen or α Cen) is the star system closest to the Solar System, being from the Sun.

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Ammonius Hermiae

Ammonius Hermiae (Ἀμμώνιος ὁ Ἑρμείου; AD) was a Greek philosopher, and the son of the Neoplatonist philosophers Hermias and Aedesia.

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Ancient Greek

The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.

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Ancient Greek astronomy

Greek astronomy is astronomy written in the Greek language in classical antiquity.

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Annapolis, Maryland

Annapolis is the capital of the U.S. state of Maryland, as well as the county seat of Anne Arundel County.

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Antoninus Pius

Antoninus Pius (Titus Aelius Hadrianus Antoninus Augustus Pius; 19 September 867 March 161 AD), also known as Antoninus, was Roman emperor from 138 to 161.

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Apollonius of Perga

Apollonius of Perga (Ἀπολλώνιος ὁ Περγαῖος; Apollonius Pergaeus; late 3rdearly 2nd centuries BC) was a Greek geometer and astronomer known for his theories on the topic of conic sections.

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Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

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Apparent retrograde motion

Apparent retrograde motion is the apparent motion of a planet in a direction opposite to that of other bodies within its system, as observed from a particular vantage point.

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Apsis

An apsis (ἁψίς; plural apsides, Greek: ἁψῖδες) is an extreme point in the orbit of an object.

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Arabic

Arabic (العَرَبِيَّة) or (عَرَبِيّ) or) is a Central Semitic language that first emerged in Iron Age northwestern Arabia and is now the lingua franca of the Arab world. It is named after the Arabs, a term initially used to describe peoples living from Mesopotamia in the east to the Anti-Lebanon mountains in the west, in northwestern Arabia, and in the Sinai peninsula. Arabic is classified as a macrolanguage comprising 30 modern varieties, including its standard form, Modern Standard Arabic, which is derived from Classical Arabic. As the modern written language, Modern Standard Arabic is widely taught in schools and universities, and is used to varying degrees in workplaces, government, and the media. The two formal varieties are grouped together as Literary Arabic (fuṣḥā), which is the official language of 26 states and the liturgical language of Islam. Modern Standard Arabic largely follows the grammatical standards of Classical Arabic and uses much of the same vocabulary. However, it has discarded some grammatical constructions and vocabulary that no longer have any counterpart in the spoken varieties, and has adopted certain new constructions and vocabulary from the spoken varieties. Much of the new vocabulary is used to denote concepts that have arisen in the post-classical era, especially in modern times. During the Middle Ages, Literary Arabic was a major vehicle of culture in Europe, especially in science, mathematics and philosophy. As a result, many European languages have also borrowed many words from it. Arabic influence, mainly in vocabulary, is seen in European languages, mainly Spanish and to a lesser extent Portuguese, Valencian and Catalan, owing to both the proximity of Christian European and Muslim Arab civilizations and 800 years of Arabic culture and language in the Iberian Peninsula, referred to in Arabic as al-Andalus. Sicilian has about 500 Arabic words as result of Sicily being progressively conquered by Arabs from North Africa, from the mid 9th to mid 10th centuries. Many of these words relate to agriculture and related activities (Hull and Ruffino). Balkan languages, including Greek and Bulgarian, have also acquired a significant number of Arabic words through contact with Ottoman Turkish. Arabic has influenced many languages around the globe throughout its history. Some of the most influenced languages are Persian, Turkish, Spanish, Urdu, Kashmiri, Kurdish, Bosnian, Kazakh, Bengali, Hindi, Malay, Maldivian, Indonesian, Pashto, Punjabi, Tagalog, Sindhi, and Hausa, and some languages in parts of Africa. Conversely, Arabic has borrowed words from other languages, including Greek and Persian in medieval times, and contemporary European languages such as English and French in modern times. Classical Arabic is the liturgical language of 1.8 billion Muslims and Modern Standard Arabic is one of six official languages of the United Nations. All varieties of Arabic combined are spoken by perhaps as many as 422 million speakers (native and non-native) in the Arab world, making it the fifth most spoken language in the world. Arabic is written with the Arabic alphabet, which is an abjad script and is written from right to left, although the spoken varieties are sometimes written in ASCII Latin from left to right with no standardized orthography.

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Aristotle

Aristotle (Ἀριστοτέλης Aristotélēs,; 384–322 BC) was an ancient Greek philosopher and scientist born in the city of Stagira, Chalkidiki, in the north of Classical Greece.

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ASCII

ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication.

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Astronomy in the medieval Islamic world

Islamic astronomy comprises the astronomical developments made in the Islamic world, particularly during the Islamic Golden Age (9th–13th centuries), and mostly written in the Arabic language.

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Atmospheric refraction

Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height.

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Axial precession

In astronomy, axial precession is a gravity-induced, slow, and continuous change in the orientation of an astronomical body's rotational axis.

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Basilios Bessarion

Basilios (or Basilius) Bessarion (Greek: Βασίλειος Βησσαρίων; 2 January 1403 – 18 November 1472), a Roman Catholic Cardinal Bishop and the titular Latin Patriarch of Constantinople, was one of the illustrious Greek scholars who contributed to the great revival of letters in the 15th century.

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Bibliothèque nationale de France

The (BnF, English: National Library of France) is the national library of France, located in Paris.

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Book of Fixed Stars

The Book of Fixed Stars (كتاب صور الكواكب) is an astronomical text written by Abd al-Rahman al-Sufi (Azophi) around 964.

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Byzantine Empire

The Byzantine Empire, also referred to as the Eastern Roman Empire and Byzantium, was the continuation of the Roman Empire in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinople (modern-day Istanbul, which had been founded as Byzantium).

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Caliphate

A caliphate (خِلافة) is a state under the leadership of an Islamic steward with the title of caliph (خَليفة), a person considered a religious successor to the Islamic prophet Muhammad and a leader of the entire ummah (community).

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Cambridge University Press

Cambridge University Press (CUP) is the publishing business of the University of Cambridge.

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Canopus, Egypt

Canopus, also known as Canobus, was an Ancient Egyptian coastal town, located in the Nile Delta.

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Celestial cartography

Celestial cartography, uranography, astrography or star cartography is the fringe of astronomy and branch of cartography concerned with mapping stars, galaxies, and other astronomical objects on the celestial sphere.

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Celestial spheres

The celestial spheres, or celestial orbs, were the fundamental entities of the cosmological models developed by Plato, Eudoxus, Aristotle, Ptolemy, Copernicus, and others.

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Centaurus

Centaurus is a bright constellation in the southern sky.

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Chord (geometry)

A chord of a circle is a straight line segment whose endpoints both lie on the circle.

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Christian Heinrich Friedrich Peters

Christian Heinrich Friedrich Peters (September 19, 1813 – July 18, 1890) was a German–American astronomer, and a pioneer in the study of asteroids.

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Classical planet

In classical antiquity, the seven classical planets are the seven non-fixed astronomical objects in the sky visible to the naked eye: Mars, Jupiter, Venus, Saturn, Mercury, the Sun, and the Moon.

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Constellation

A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.

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Cosmology

Cosmology (from the Greek κόσμος, kosmos "world" and -λογία, -logia "study of") is the study of the origin, evolution, and eventual fate of the universe.

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Deferent and epicycle

In the Hipparchian and Ptolemaic systems of astronomy, the epicycle (from ἐπίκυκλος, literally upon the circle, meaning circle moving on another circle) was a geometric model used to explain the variations in speed and direction of the apparent motion of the Moon, Sun, and planets.

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Eclipse

An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having another body pass between it and the viewer.

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Ecliptic

The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.

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Ecliptic coordinate system

The ecliptic coordinate system is a celestial coordinate system commonly used for representing the apparent positions and orbits of Solar System objects.

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Edward Knobel

Edward Ball Knobel (21 October 1841 – 25 July 1930) was an English businessman and amateur astronomer.

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Equant

Equant (or punctum aequans) is a mathematical concept developed by Claudius Ptolemy in the 2nd century AD to account for the observed motion of the planets.

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Equinox

An equinox is commonly regarded as the moment the plane (extended indefinitely in all directions) of Earth's equator passes through the center of the Sun, which occurs twice each year, around 20 March and 22-23 September.

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Fixed stars

The fixed stars (stellae fixae) comprise the background of astronomical objects that appear to not move relative to each other in the night sky compared to the foreground of Solar System objects that do.

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Geocentric model

In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a superseded description of the universe with Earth at the center.

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George of Trebizond

George of Trebizond (Γεώργιος Τραπεζούντιος; 1395–1486) was a Greek philosopher, scholar and humanist.

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Gerald J. Toomer

Gerald James Toomer (born 23 November 1934) is a historian of astronomy and mathematics who has written numerous books and papers on ancient Greek and medieval Islamic astronomy.

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Gerard of Cremona

Gerard of Cremona (Latin: Gerardus Cremonensis; c. 1114 – 1187) was an Italian translator of scientific books from Arabic into Latin.

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Gnomon

A gnomon (from Greek γνώμων, gnōmōn, literally: "one that knows or examines") is the part of a sundial that casts a shadow.

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Great Books of the Western World

Great Books of the Western World is a series of books originally published in the United States in 1952, by Encyclopædia Britannica, Inc., to present the Great Books in a 54-volume set.

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Greek mathematics

Greek mathematics refers to mathematics texts and advances written in Greek, developed from the 7th century BC to the 4th century AD around the shores of the Eastern Mediterranean.

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Guillaume Postel

Guillaume Postel (25 March 1510 – 6 September 1581) was a French linguist, astronomer, Cabbalist, diplomat, professor, and religious universalist.

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Henry Aristippus

Henry Aristippus of Calabria (born in Santa Severina in 1105–10; died in Palermo in 1162), sometimes known as Enericus or Henricus Aristippus, was a religious scholar and the archdeacon of Catania (from c. 1155) and later chief familiaris (or chancellor) of the triumvirate of familiares who replaced the admiral Maio of Bari as chief functionaries of the kingdom of Sicily in 1161.

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Hipparchus

Hipparchus of Nicaea (Ἵππαρχος, Hipparkhos) was a Greek astronomer, geographer, and mathematician.

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History of Alexandria

The history of Alexandria dates back to the city's founding, by Alexander the Great, in 331 BC.

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Islamic Golden Age

The Islamic Golden Age is the era in the history of Islam, traditionally dated from the 8th century to the 14th century, during which much of the historically Islamic world was ruled by various caliphates, and science, economic development and cultural works flourished.

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Johan Ludvig Heiberg (historian)

Johan Ludvig Heiberg (27 November 1854 – 4 January 1928) was a Danish philologist and historian.

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Jupiter

Jupiter is the fifth planet from the Sun and the largest in the Solar System.

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Königsberg

Königsberg is the name for a former German city that is now Kaliningrad, Russia.

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Koine Greek

Koine Greek,.

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Latin

Latin (Latin: lingua latīna) is a classical language belonging to the Italic branch of the Indo-European languages.

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Latitude

In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface.

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Logarithmic scale

A logarithmic scale is a nonlinear scale used when there is a large range of quantities.

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Mars

Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.

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Martianus Capella

Martianus Minneus Felix Capella was a Latin prose writer of Late Antiquity (fl. c. 410–420), one of the earliest developers of the system of the seven liberal arts that structured early medieval education.

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Mercury (planet)

Mercury is the smallest and innermost planet in the Solar System.

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Middle Ages

In the history of Europe, the Middle Ages (or Medieval Period) lasted from the 5th to the 15th century.

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Moon

The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.

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Moors

The term "Moors" refers primarily to the Muslim inhabitants of the Maghreb, the Iberian Peninsula, Sicily, Sardinia, Corsica, and Malta during the Middle Ages.

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Nicholas Halma

Nicholas Halma (31 December 1755, Sedan, Ardennes – 4 June 1828, Paris) was a mathematician and translator.

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Nicolaus Copernicus

Nicolaus Copernicus (Mikołaj Kopernik; Nikolaus Kopernikus; Niklas Koppernigk; 19 February 1473 – 24 May 1543) was a Renaissance-era mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe, likely independently of Aristarchus of Samos, who had formulated such a model some eighteen centuries earlier.

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Olaf Pedersen

Olaf Pedersen (1920–1997) was a "leading authority on astronomy in classical antiquity and the Latin middle ages"Michael Hoskin (October 1998) Astronomy and Geophysics 39(5):33,4 Olaf Pedersen was born April 8, 1920 in Egtved, Jutland, Denmark.

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Ottoman Empire

The Ottoman Empire (دولت عليه عثمانیه,, literally The Exalted Ottoman State; Modern Turkish: Osmanlı İmparatorluğu or Osmanlı Devleti), also historically known in Western Europe as the Turkish Empire"The Ottoman Empire-also known in Europe as the Turkish Empire" or simply Turkey, was a state that controlled much of Southeast Europe, Western Asia and North Africa between the 14th and early 20th centuries.

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Oxford University Press

Oxford University Press (OUP) is the largest university press in the world, and the second oldest after Cambridge University Press.

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Pappus of Alexandria

Pappus of Alexandria (Πάππος ὁ Ἀλεξανδρεύς; c. 290 – c. 350 AD) was one of the last great Greek mathematicians of Antiquity, known for his Synagoge (Συναγωγή) or Collection (c. 340), and for Pappus's hexagon theorem in projective geometry.

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Parallax

Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight, and is measured by the angle or semi-angle of inclination between those two lines.

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Photodetector

Photosensors or photodetectors are sensors of light or other electromagnetic energy.

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Planet

A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.

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Plato

Plato (Πλάτων Plátōn, in Classical Attic; 428/427 or 424/423 – 348/347 BC) was a philosopher in Classical Greece and the founder of the Academy in Athens, the first institution of higher learning in the Western world.

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Pope Nicholas V

Pope Nicholas V (Nicholaus V) (13 November 1397 – 24 March 1455), born Tommaso Parentucelli, was Pope from 6 March 1447 until his death.

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Precession

Precession is a change in the orientation of the rotational axis of a rotating body.

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Ptolemy

Claudius Ptolemy (Κλαύδιος Πτολεμαῖος, Klaúdios Ptolemaîos; Claudius Ptolemaeus) was a Greco-Roman mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology.

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Ptolemy's table of chords

The table of chords, created by the astronomer, geometer, and geographer Ptolemy in Egypt during the 2nd century AD, is a trigonometric table in Book I, chapter 11 of Ptolemy's Almagest, a treatise on mathematical astronomy.

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R. Catesby Taliaferro

Robert Catesby Taliaferro (1907–1989) was an American mathematician, science historian, classical philologist, philosopher, and translator of ancient Greek and Latin works into English.

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Regiomontanus

Johannes Müller von Königsberg (6 June 1436 – 6 July 1476), better known as Regiomontanus, was a mathematician and astronomer of the German Renaissance, active in Vienna, Buda and Nuremberg.

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Renaissance

The Renaissance is a period in European history, covering the span between the 14th and 17th centuries.

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Sahl ibn Bishr

Sahl ibn Bishr al-Israili, more commonly; Rabban al-Tabari often known as Zahel or Zael (c. 786–845 ?) was a Syriac Christian or Jewish astrologer, astronomer and mathematician from Tabaristan.

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Saturn

Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.

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Solstice

A solstice is an event occurring when the Sun appears to reach its most northerly or southerly excursion relative to the celestial equator on the celestial sphere.

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Spherical trigonometry

Spherical trigonometry is the branch of spherical geometry that deals with the relationships between trigonometric functions of the sides and angles of the spherical polygons (especially spherical triangles) defined by a number of intersecting great circles on the sphere.

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St. John's College (Annapolis/Santa Fe)

St.

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Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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Star catalogue

A star catalogue (Commonwealth English) or star catalog (American English), is an astronomical catalogue that lists stars.

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State Library of Victoria

State Library Victoria is the central library of the state of Victoria, Australia, located in Melbourne.

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Sun

The Sun is the star at the center of the Solar System.

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Theon of Alexandria

Theon of Alexandria (Θέων ὁ Ἀλεξανδρεύς; 335 – c. 405) was a Greek scholar and mathematician who lived in Alexandria, Egypt.

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Three-dimensional space

Three-dimensional space (also: 3-space or, rarely, tri-dimensional space) is a geometric setting in which three values (called parameters) are required to determine the position of an element (i.e., point).

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Toledo School of Translators

The Toledo School of Translators (Escuela de Traductores de Toledo) is the group of scholars who worked together in the city of Toledo during the 12th and 13th centuries, to translate many of the philosophical and scientific works from Classical Arabic.

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Trigonometry

Trigonometry (from Greek trigōnon, "triangle" and metron, "measure") is a branch of mathematics that studies relationships involving lengths and angles of triangles.

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University Press of Southern Denmark

University Press of Southern Denmark is Denmark's largest university press and was founded in 1966 as Odense University Press (Odense Universitetsforlag).

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Venus

Venus is the second planet from the Sun, orbiting it every 224.7 Earth days.

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Zodiac

The zodiac is an area of the sky that extends approximately 8° north or south (as measured in celestial latitude) of the ecliptic, the apparent path of the Sun across the celestial sphere over the course of the year.

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Redirects here:

Magna Syntaxis, Mathematical Syntaxis, Mathematike Syntaxis, Ptolemaic theory of the solar system, Syntaxis Mathematica, The Almagest, Μαθηματικὴ Σύνταξις.

References

[1] https://en.wikipedia.org/wiki/Almagest

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