Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
And Ads-free!

Prime meridian

A prime meridian is a meridian (a line of longitude) in a geographical coordinate system at which longitude is defined to be 0°. [1]

144 relations: Abraham Ortelius, Africa, Airy-0, Alexandria, Almagest, Amsterdam, Antipodes, Antwerp, Astronomer Royal, Atlantic Ocean, Azores, Bering Strait, Bern, Bologna, Bruce (crater), Brussels, Canary Islands, Cape Verde, Cardinal Richelieu, Charon (moon), Christopher Columbus, Christopher Saxton, Connaissance des Temps, Copenhagen, Den Store Danske Encyklopædi, Denotation (semiotics), Diogo Ribeiro, Earth, Easter Island, Eastern Hemisphere, Edmond Halley, El Hierro, Equator, Eratosthenes, Ferro Meridian, Florence, Florence meridian, Fortunate Isles, Fuerteventura, Gall–Peters projection, Geodetic datum, Geographer, Geographic coordinate system, Geography (Ptolemy), George Biddell Airy, Gerardus Mercator, Global Positioning System, Great circle, Great Pyramid of Giza, Greeks, ..., Greenwich, Guillaume Delisle, Hemispheres of the Earth, Hipparchus, IERS Reference Meridian, International Date Line, International Earth Rotation and Reference Systems Service, International Meridian Conference, International Terrestrial Reference System, International Time Bureau, Jacob Roggeveen, James Bradley, Jerusalem, John Flamsteed, John Hadley, John Harrison, Jupiter, Kyoto, Latitude, Lisbon, Longitude, Longitude (book), Lunar distance (navigation), Lunar eclipse, Madrid, Magnetic field, Maimonides, Marine chronometer, Mars, Mecca, Mecca Time, Meridian (geography), Meridian circle, Meridian of Antwerp, Minute and second of arc, Monte Mario, Moon, Naples, Nevil Maskelyne, North Pole, Octant (instrument), Oradea, Oslo, Paris, Paris meridian, Philadelphia, Pierre Janssen, Pisa, Plate tectonics, Plumb bob, Pluto, Portugal, Prime meridian (Greenwich), Ptolemy, Pulkovo Observatory, Rhodes, Richard Christopher Carrington, Rio de Janeiro, Rome, Royal Observatory, Greenwich, Rundetårn, Saint Petersburg, Sandford Fleming, São Miguel Island, Sea level, South Pole, Spain, Stockholm, Stockholm Observatory, Strabo, Submarine communications cable, Sunspot, Tenerife, Tenerife meridian, The Nautical Almanac, Thomas Godfrey (inventor), Titan (moon), Treaty of Tordesillas, Ujjain, United Kingdom Ordnance Survey Zero Meridian, United States, United States Department of Defense, Venus, Warsaw, Warsaw meridian, Washington meridian, Washington, D.C., Westerkerk, Western Hemisphere, Winchester, World Geodetic System, 180th meridian, 1st meridian east, 1st meridian west. Expand index (94 more) »

Abraham Ortelius

Abraham Ortelius (also Ortels, Orthellius, Wortels; 14 April 1527 – 28 June 1598) was a Flemish cartographer and geographer, conventionally recognized as the creator of the first modern atlas, the Theatrum Orbis Terrarum (Theatre of the World).

New!!: Prime meridian and Abraham Ortelius · See more »

Africa

Africa is the world's second-largest and second-most-populous continent.

New!!: Prime meridian and Africa · See more »

Airy-0

Airy-0 is a crater on Mars whose location defines the position of the prime meridian of that planet.

New!!: Prime meridian and Airy-0 · See more »

Alexandria

Alexandria (or; اسكندرية, in Egyptian Arabic) is the second largest city and a major economic centre in Egypt, extending about along the coast of the Mediterranean Sea in the north central part of the country.

New!!: Prime meridian and Alexandria · See more »

Almagest

The Almagest is a 2nd-century mathematical and astronomical treatise on the apparent motions of the stars and planetary paths.

New!!: Prime meridian and Almagest · See more »

Amsterdam

Amsterdam is the capital city and most populous city of the Kingdom of the Netherlands.

New!!: Prime meridian and Amsterdam · See more »

Antipodes

In geography, the antipodes (from Greek: ἀντίποδες, from anti- "opposed" and pous "foot") of any place on Earth is the point on the Earth's surface which is diametrically opposite to it.

New!!: Prime meridian and Antipodes · See more »

Antwerp

Antwerp (Antwerpen, Anvers) is a city in Belgium which is the capital of Antwerp province.

New!!: Prime meridian and Antwerp · See more »

Astronomer Royal

Astronomer Royal is a senior post in the Royal Households of the United Kingdom.

New!!: Prime meridian and Astronomer Royal · See more »

Atlantic Ocean

The Atlantic Ocean is the second largest of the world's oceanic divisions, following the Pacific Ocean.

New!!: Prime meridian and Atlantic Ocean · See more »

Azores

The Azores (Açores), officially the Autonomous Region of the Azores (Região Autónoma dos Açores), is one of the two autonomous regions of Portugal, composed of nine volcanic islands situated in the North Atlantic Ocean about west of continental Portugal, about northwest of Madeira, about southeast of Newfoundland, and about northeast of Brazil.

New!!: Prime meridian and Azores · See more »

Bering Strait

The Bering Strait (Берингов пролив, Beringov proliv, Yupik: Imakpik) is a strait connecting the Pacific and Arctic oceans between Russia and the US state of Alaska.

New!!: Prime meridian and Bering Strait · See more »

Bern

The city of Bern or Berne (Bern,; Berne; Berna; Berna; Bernese German: Bärn) is the de facto capital of Switzerland, referred to by the Swiss as their (e.g. in German) Bundesstadt, or "federal city".

New!!: Prime meridian and Bern · See more »

Bologna

Bologna (Emilian: Bulåggna pronounced; Bononia) is the largest city (and the capital) of the Emilia-Romagna Region in Italy.

New!!: Prime meridian and Bologna · See more »

Bruce (crater)

Bruce is a small lunar impact crater located in the Sinus Medii.

New!!: Prime meridian and Bruce (crater) · See more »

Brussels

Brussels (Bruxelles,; Brussel), officially the Brussels-Capital Region (All text and all but one graphic show the English name as Brussels-Capital Region.) (Région de Bruxelles-Capitale, Brussels Hoofdstedelijk Gewest), is a region of Belgium comprising 19 municipalities, including the city of Brussels which de jure is the capital of Belgium, the French Community of Belgium, and the Flemish Community.

New!!: Prime meridian and Brussels · See more »

Canary Islands

The Canary Islands (Islas Canarias), also known as the Canaries (Canarias), are a Spanish archipelago located just off the southern coast of Morocco, west of its southern border.

New!!: Prime meridian and Canary Islands · See more »

Cape Verde

Cape Verde or Cabo Verde (Cabo Verde), officially the Republic of Cabo Verde, is an island country spanning an archipelago of 10 volcanic islands in the central Atlantic Ocean.

New!!: Prime meridian and Cape Verde · See more »

Cardinal Richelieu

Armand Jean du Plessis, Cardinal-Duke of Richelieu and of Fronsac (9 September 1585 – 4 December 1642), commonly referred to as Cardinal Richelieu (Cardinal de Richelieu), was a French clergyman, noble and statesman.

New!!: Prime meridian and Cardinal Richelieu · See more »

Charon (moon)

Charon, also called (134340) Pluto I, is the largest of the five known moons of the dwarf planet Pluto.

New!!: Prime meridian and Charon (moon) · See more »

Christopher Columbus

Christopher Columbus (Cristoforo Colombo; Cristóbal Colón; Cristóvão Colombo; born between 31 October 1450 and 30 October 1451, Genoa; died 20 May 1506, Valladolid) was an Italian explorer, navigator, colonizer and citizen of the Republic of Genoa.

New!!: Prime meridian and Christopher Columbus · See more »

Christopher Saxton

Christopher Saxton (c.1540 – c.1610) was an English cartographer who produced the first county maps of England and Wales.

New!!: Prime meridian and Christopher Saxton · See more »

Connaissance des Temps

The Connaissance des temps (English: Knowledge of Time) is an official astronomical yearly publication in France.

New!!: Prime meridian and Connaissance des Temps · See more »

Copenhagen

Copenhagen (København), historically known as the capital of the Denmark-Norway union, is the capital and most populated city of Denmark, with an urban population of 1,263,698 and a metropolitan population of 1,992,114.

New!!: Prime meridian and Copenhagen · See more »

Den Store Danske Encyklopædi

Den Store Danske Encyklopædi (The Great Danish Encyclopedia) is the most comprehensive contemporary Danish language encyclopedia.

New!!: Prime meridian and Den Store Danske Encyklopædi · See more »

Denotation (semiotics)

In semiotics, denotation is the surface or literal meaning encoded to a signifier, and the definition most likely to appear in a dictionary.

New!!: Prime meridian and Denotation (semiotics) · See more »

Diogo Ribeiro

Diogo Ribeiro, also known as Diego Ribero, was a Portuguese cartographer and explorer who worked most of his life in Spain.

New!!: Prime meridian and Diogo Ribeiro · See more »

Earth

Earth (also the world, in Greek: Gaia, or in Latin: Terra), is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to accommodate life.

New!!: Prime meridian and Earth · See more »

Easter Island

Easter Island (Rapa Nui, Isla de Pascua) is a Chilean island in the southeastern Pacific Ocean, at the southeasternmost point of the Polynesian Triangle.

New!!: Prime meridian and Easter Island · See more »

Eastern Hemisphere

The Eastern Hemisphere is a geographical term for the half of the Earth that is east of the Prime Meridian (which crosses Greenwich, England, United Kingdom) and west of 180° longitude.

New!!: Prime meridian and Eastern Hemisphere · See more »

Edmond Halley

Edmond (or Edmund) Halley, FRS (pronounced; 8 November 1656 – 14 January 1742) was an English astronomer, geophysicist, mathematician, meteorologist, and physicist who is best known for computing the orbit of the eponymous Halley's Comet.

New!!: Prime meridian and Edmond Halley · See more »

El Hierro

El Hierro, nicknamed Isla del Meridiano (the "Meridian Island"), is the smallest and farthest south and west of the Canary Islands (an Autonomous Community of Spain), in the Atlantic Ocean off the coast of Africa, with a population of 10,162 (2003).

New!!: Prime meridian and El Hierro · See more »

Equator

An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere's axis of rotation and midway between the poles.

New!!: Prime meridian and Equator · See more »

Eratosthenes

Eratosthenes of Cyrene (Ἐρατοσθένης,; –) was a Greek mathematician, geographer, poet, astronomer, and music theorist.

New!!: Prime meridian and Eratosthenes · See more »

Ferro Meridian

The line of longitude running through El Hierro (Ferro) was known in European history as the prime meridian in common use outside of the future British Empire.

New!!: Prime meridian and Ferro Meridian · See more »

Florence

Florence (Firenze, alternative obsolete form: Fiorenza; Latin: Florentia) is the capital city of the Italian region of Tuscany and of the province of Florence.

New!!: Prime meridian and Florence · See more »

Florence meridian

The Meridian 11°15 East was proposed as prime meridian by Arno Peters in the Peters World Map.

New!!: Prime meridian and Florence meridian · See more »

Fortunate Isles

The Fortunate Isles or Isles of the Blessed (μακάρων νῆσοι, makárôn nêsoi) were semi-legendary islands in the Atlantic Ocean, variously treated as a simple geographical location and as a winterless earthly paradise inhabited by the heroes of Greek mythology.

New!!: Prime meridian and Fortunate Isles · See more »

Fuerteventura

Fuerteventura (loosely translated as "Strong Winds" or a corruption of the French term for "Great Adventure") is one of the Canary Islands, in the Atlantic Ocean off the coast of Africa, politically part of Spain.

New!!: Prime meridian and Fuerteventura · See more »

Gall–Peters projection

The Gall–Peters projection, named after James Gall and Arno Peters, is one specialization of a configurable equal-area map projection known as the equal-area cylindric or cylindrical equal-area projection.

New!!: Prime meridian and Gall–Peters projection · See more »

Geodetic datum

A Geodetic datum or geodetic system is a coordinate system, and a set of reference points, used to locate places on the Earth (or similar objects).

New!!: Prime meridian and Geodetic datum · See more »

Geographer

A geographer is a scholar whose area of study is geography, the study of Earth's natural environment and human society.

New!!: Prime meridian and Geographer · See more »

Geographic coordinate system

A geographic coordinate system is a coordinate system that enables every location on the Earth to be specified by a set of numbers or letters.

New!!: Prime meridian and Geographic coordinate system · See more »

Geography (Ptolemy)

The Geography (Γεωγραφικὴ Ὑφήγησις, Geōgraphikḕ Hyphḗgēsis, "Geographical Guidance"), also known by its Latin names as the Geographia and the Cosmographia, is a gazeteer, an atlas, and a treatise on cartography, compiling the geographical knowledge of the 2nd-century Roman Empire.

New!!: Prime meridian and Geography (Ptolemy) · See more »

George Biddell Airy

Sir George Biddell Airy, KCB, PRS (27 July 1801 – 2 January 1892) was an English mathematician and astronomer, Astronomer Royal from 1835 to 1881.

New!!: Prime meridian and George Biddell Airy · See more »

Gerardus Mercator

Gerardus Mercator (born 5 March 1512 in Rupelmonde, County of Flanders (in modern Belgium), died 2 December 1594 in Duisburg, United Duchies of Jülich-Cleves-Berg, (modern-day Germany)) was a cartographer, philosopher and mathematician.

New!!: Prime meridian and Gerardus Mercator · See more »

Global Positioning System

The Global Positioning System (GPS) is a space-based navigation system that provides location and time information in all weather conditions, anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites.

New!!: Prime meridian and Global Positioning System · See more »

Great circle

A great circle, also known as an orthodrome or Riemannian circle, of a sphere is the intersection of the sphere and a plane which passes through the center point of the sphere.

New!!: Prime meridian and Great circle · See more »

Great Pyramid of Giza

The Great Pyramid of Giza (also known as the Pyramid of Khufu or the Pyramid of Cheops) is the oldest and largest of the three pyramids in the Giza Necropolis bordering what is now El Giza, Egypt.

New!!: Prime meridian and Great Pyramid of Giza · See more »

Greeks

The Greeks or Hellenes (Έλληνες) are an ethnic group native to Greece, Cyprus, Albania, Anatolia, Southern Italy, and other regions. They also form a significant diaspora, with Greek communities established around the world. Greek colonies and communities have been historically established on the shores of the Mediterranean Sea and Black Sea, but the Greek people have always been centered around the Aegean and Ionian seas, where the Greek language has been spoken since the Bronze Age. Until the early 20th century, Greeks were distributed between the Greek peninsula, the western coast of Asia Minor, the Black Sea coast, Cappadocia in central Anatolia, Egypt, the Balkans, Cyprus, and Constantinople. Many of these regions coincided to a large extent with the borders of the Byzantine Empire of the late 11th century and the Eastern Mediterranean areas of ancient Greek colonization. The cultural centers of the Greeks have included Athens, Thessalonica, Alexandria, Smyrna, and Constantinople at various periods. Most ethnic Greeks live nowadays within the borders of the modern Greek state and Cyprus. The Greek genocide and population exchange between Greece and Turkey nearly ended the three millennia-old Greek presence in Asia Minor. Other longstanding Greek populations can be found from southern Italy to the Caucasus and southern Russia and Ukraine and in the Greek diaspora communities in a number of other countries. Today, most Greeks are officially registered as members of the Greek Orthodox Church.CIA World Factbook on Greece: Greek Orthodox 98%, Greek Muslim 1.3%, other 0.7%. Greeks have greatly influenced and contributed to culture, arts, exploration, literature, philosophy, politics, architecture, music, mathematics, science and technology, business, cuisine, and sports, both historically and contemporarily.

New!!: Prime meridian and Greeks · See more »

Greenwich

Greenwich is an early-established district of today's London, England, and the administrative centre of the Royal Borough of Greenwich centred 5.5 miles (8.9 km) east south-east of Charing Cross.

New!!: Prime meridian and Greenwich · See more »

Guillaume Delisle

Guillaume Delisle, also spelled Guillaume de l'Isle, (28 February 1675, Paris - 25 January 1726, Paris) was a French cartographer known for his popular and accurate maps of Europe and the newly explored Americas and Africa.

New!!: Prime meridian and Guillaume Delisle · See more »

Hemispheres of the Earth

The Hemispheres of the Earth in geography and cartography refer to any division of the globe into 2 hemispheres (from Ancient Greek ἡμισφαίριον hēmisphairion meaning "half of a sphere").

New!!: Prime meridian and Hemispheres of the Earth · See more »

Hipparchus

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

New!!: Prime meridian and Hipparchus · See more »

IERS Reference Meridian

The IERS Reference Meridian (IRM), also called the International Reference Meridian, is the prime meridian (0° longitude) maintained by the International Earth Rotation and Reference Systems Service (IERS).

New!!: Prime meridian and IERS Reference Meridian · See more »

International Date Line

The International Date Line (IDL) is an imaginary line on the surface of the Earth that runs from the north pole to the south pole and demarcates the change of one calendar day to the next.

New!!: Prime meridian and International Date Line · See more »

International Earth Rotation and Reference Systems Service

The International Earth Rotation and Reference Systems Service (IERS), formerly the International Earth Rotation Service, is the body responsible for maintaining global time and reference frame standards, notably through its Earth Orientation Parameter (EOP) and International Celestial Reference System (ICRS) groups.

New!!: Prime meridian and International Earth Rotation and Reference Systems Service · See more »

International Meridian Conference

The International Meridian Conference was a conference held in October 1884 in Washington, D.C., in the United States, to determine a prime meridian for international use.

New!!: Prime meridian and International Meridian Conference · See more »

International Terrestrial Reference System

The International Terrestrial Reference System (ITRS) describes procedures for creating reference frames suitable for use with measurements on or near the Earth's surface.

New!!: Prime meridian and International Terrestrial Reference System · See more »

International Time Bureau

The International Time Bureau (Bureau International de l'Heure, abbreviated BIH) seated at the Paris Observatory, was the international bureau responsible for combining different measurements of Universal Time.

New!!: Prime meridian and International Time Bureau · See more »

Jacob Roggeveen

Jacob Roggeveen (1 February 1659 – 31 January 1729) was a Dutch explorer who was sent to find Terra Australis, but he instead came across Easter Island.

New!!: Prime meridian and Jacob Roggeveen · See more »

James Bradley

James Bradley FRS (March 1693 – 13 July 1762) was an English astronomer and served as Astronomer Royal from 1742, succeeding Edmond Halley.

New!!: Prime meridian and James Bradley · See more »

Jerusalem

Jerusalem (יְרוּשָׁלַיִם; القُدس), located on a plateau in the Judean Mountains between the Mediterranean and the Dead Sea, is one of the oldest cities in the world.

New!!: Prime meridian and Jerusalem · See more »

John Flamsteed

John Flamsteed FRS (19 August 1646 – 31 December 1719) was an English astronomer and the first Astronomer Royal.

New!!: Prime meridian and John Flamsteed · See more »

John Hadley

John Hadley (16 April 1682 – 14 February 1744) was an English mathematician, and laid claim to the invention of the octant, two years after Thomas Godfrey claimed the same.

New!!: Prime meridian and John Hadley · See more »

John Harrison

John Harrison (– 24 March 1776) was a self-educated English carpenter and clockmaker.

New!!: Prime meridian and John Harrison · See more »

Jupiter

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

New!!: Prime meridian and Jupiter · See more »

Kyoto

, formerly known as Meaco, is a city located in the central part of the island of Honshu, Japan.

New!!: Prime meridian and Kyoto · See more »

Latitude

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

New!!: Prime meridian and Latitude · See more »

Lisbon

Lisbon (Lisboa) is the capital and the largest city of Portugal, with a population of 552,700, Census 2011 results according to the 2013 administrative division of Portugal within its administrative limits in an area of 100.05 km².

New!!: Prime meridian and Lisbon · See more »

Longitude

Longitude (or, British also), is a geographic coordinate that specifies the east-west position of a point on the Earth's surface.

New!!: Prime meridian and Longitude · See more »

Longitude (book)

Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time is a best-selling book by Dava Sobel about John Harrison, an 18th-century clockmaker who created the first clock (chronometer) sufficiently accurate to be used to determine longitude at sea—an important development in navigation.

New!!: Prime meridian and Longitude (book) · See more »

Lunar distance (navigation)

In celestial navigation, lunar distance is the angle between the Moon and another celestial body.

New!!: Prime meridian and Lunar distance (navigation) · See more »

Lunar eclipse

A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow).

New!!: Prime meridian and Lunar eclipse · See more »

Madrid

Madrid is a south-western European city and the capital and largest municipality of Spain.

New!!: Prime meridian and Madrid · See more »

Magnetic field

A magnetic field is the magnetic effect of electric currents and magnetic materials.

New!!: Prime meridian and Magnetic field · See more »

Maimonides

Moshe ben Maimon (משה בן-מימון), or Mūsā ibn Maymūn (موسى بن ميمون), acronymed Rambam (רמב"ם – for "Rabbeinu Moshe Ben Maimon", "Our Rabbi/Teacher Moses Son of Maimon"), and Latinized Moses Maimonides, a preeminent medieval Sephardic Jewish philosopher and astronomer, became one of the most prolific and influential Torah scholars and physicians of the Middle Ages.

New!!: Prime meridian and Maimonides · See more »

Marine chronometer

A marine chronometer is a timepiece that is precise and accurate enough to be used as a portable time standard; it can therefore be used to determine longitude by means of celestial navigation.

New!!: Prime meridian and Marine chronometer · See more »

Mars

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

New!!: Prime meridian and Mars · See more »

Mecca

Mecca (مكة), also transliterated Makkah, is a city in the Hejaz in Saudi Arabia.

New!!: Prime meridian and Mecca · See more »

Mecca Time

Mecca Time was a proposed time standard that uses the line of longitude that goes through Mecca, Saudi Arabia (39°49′34″ E of the Greenwich Meridian) as its Prime Meridian.

New!!: Prime meridian and Mecca Time · See more »

Meridian (geography)

A meridian (or line of longitude) is any great circle line on the Earth's surface, passing through the North Pole and the South Pole.

New!!: Prime meridian and Meridian (geography) · See more »

Meridian circle

The meridian circle is an instrument for timing of the passage of stars across the local meridian, an event known as a transit, while at the same time measuring their angular distance from the nadir.

New!!: Prime meridian and Meridian circle · See more »

Meridian of Antwerp

The meridan of Antwerp is one of several prime meridians that have been used for geographic referencing.

New!!: Prime meridian and Meridian of Antwerp · See more »

Minute and second of arc

A minute of arc (MOA), arcminute (arcmin) or minute arc is a unit of angular measurement equal to one-sixtieth of one degree.

New!!: Prime meridian and Minute and second of arc · See more »

Monte Mario

Monte Mario is the highest (139 m) hill in Rome, Italy.

New!!: Prime meridian and Monte Mario · See more »

Moon

The Moon (in Greek: Selene, in Latin: Luna) is Earth's only natural satellite.

New!!: Prime meridian and Moon · See more »

Naples

Naples (Napoli, Neapolitan: nNapule; Neapolis; Νεάπολις, meaning "new city") is the capital of the Italian region Campania and the third-largest municipality in Italy, after Rome and Milan.

New!!: Prime meridian and Naples · See more »

Nevil Maskelyne

The Reverend Dr Nevil Maskelyne FRS (6 October 1732 – 9 February 1811) was the fifth British Astronomer Royal.

New!!: Prime meridian and Nevil Maskelyne · See more »

North Pole

The North Pole, also known as the Geographic North Pole, Celestial North Pole, or Terrestrial North Pole, is (subject to the caveats explained below) defined as the point in the Northern Hemisphere where the Earth's axis of rotation meets its surface.

New!!: Prime meridian and North Pole · See more »

Octant (instrument)

The octant, also called reflecting quadrant, is a measuring instrument used primarily in navigation.

New!!: Prime meridian and Octant (instrument) · See more »

Oradea

Oradea (Großwardein, Nagyvárad, Hungarian pronunciation:, colloquially also Várad, former Varat, גרויסווארדיין Groysvardeyn) the capital city of Bihor County and Crișana region, is one of the important centers of economic, social and cultural development in the western part of Romania, retaining these characteristics throughout history.

New!!: Prime meridian and Oradea · See more »

Oslo

Oslo (or, rarer or) is the capital and the most populous city in Norway.

New!!: Prime meridian and Oslo · See more »

Paris

Paris (UK:; US:; French) is the capital and most-populous city of France.

New!!: Prime meridian and Paris · See more »

Paris meridian

The Paris meridian is a meridian line running through the Paris Observatory in Paris, France—now longitude 2°20′14.03″ east.

New!!: Prime meridian and Paris meridian · See more »

Philadelphia

Philadelphia is the largest city in the U.S. state of Pennsylvania and the fifth-most-populous in the United States.

New!!: Prime meridian and Philadelphia · See more »

Pierre Janssen

Pierre Jules César Janssen (22 February 1824 – 23 December 1907), also known as Jules Janssen, was a French astronomer who, along with the English scientist Joseph Norman Lockyer, is credited with discovering the gaseous nature of the solar chromosphere, and with some justification the element helium.

New!!: Prime meridian and Pierre Janssen · See more »

Pisa

Pisa is a city in Tuscany, Central Italy, straddling the River Arno just before it empties into the Tyrrhenian Sea.

New!!: Prime meridian and Pisa · See more »

Plate tectonics

Plate tectonics (from the Late Latin tectonicus, from the τεκτονικός "pertaining to building") is a scientific theory that describes the large-scale motion of Earth's lithosphere.

New!!: Prime meridian and Plate tectonics · See more »

Plumb bob

A plumb-bob or a plummet is a weight, usually with a pointed tip on the bottom, that is suspended from a string and used as a vertical reference line, or plumb-line.

New!!: Prime meridian and Plumb bob · See more »

Pluto

Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.

New!!: Prime meridian and Pluto · See more »

Portugal

Portugal, officially the Portuguese Republic (República Portuguesa), is a country on the Iberian Peninsula, in southwestern Europe.

New!!: Prime meridian and Portugal · See more »

Prime meridian (Greenwich)

A prime meridian, based at the Royal Observatory, Greenwich, in London, was established by Sir George Airy in 1851.

New!!: Prime meridian and Prime meridian (Greenwich) · See more »

Ptolemy

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

New!!: Prime meridian and Ptolemy · See more »

Pulkovo Observatory

The Pulkovo Astronomical Observatory (Пу́лковская астрономи́ческая обсервато́рия, official name The Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo, Гла́вная (Пу́лковская) астрономи́ческая обсервато́рия Росси́йской акаде́мии нау́к), the principal astronomical observatory of the Russian Academy of Sciences, located 19 km south of Saint Petersburg on Pulkovo Heights above sea level.

New!!: Prime meridian and Pulkovo Observatory · See more »

Rhodes

Rhodes (Ρόδος, Ródos) is the largest of the Dodecanese islands in terms of land area and also the island group's historical capital.

New!!: Prime meridian and Rhodes · See more »

Richard Christopher Carrington

Richard Christopher Carrington (26 May 1826 – 27 November 1875) was an English amateur astronomer whose 1859 astronomical observations demonstrated the existence of solar flares as well as suggesting their electrical influence upon the Earth and its aurorae; and whose 1863 records of sunspot observations revealed the differential rotation of the Sun.

New!!: Prime meridian and Richard Christopher Carrington · See more »

Rio de Janeiro

Rio de Janeiro (January River), or simply Rio, is the second-largest city in Brazil, the sixth-largest city in the Americas, and the world's thirty-fifth-largest city by population.

New!!: Prime meridian and Rio de Janeiro · See more »

Rome

Rome (Roma, Rōma) is a city and special comune (named "Roma Capitale") in Italy.

New!!: Prime meridian and Rome · See more »

Royal Observatory, Greenwich

The Royal Observatory, Greenwich, (known as the Royal Greenwich Observatory or RGO when the working institution moved from Greenwich to Herstmonceux after World War II) played a major role in the history of astronomy and navigation, and is best known as the location of the prime meridian.

New!!: Prime meridian and Royal Observatory, Greenwich · See more »

Rundetårn

The Rundetårn (English: Round Tower) is a 17th-century tower located in central Copenhagen, Denmark.

New!!: Prime meridian and Rundetårn · See more »

Saint Petersburg

Saint Petersburg (p) is the second largest city in Russia, politically incorporated as a federal subject (a federal city).

New!!: Prime meridian and Saint Petersburg · See more »

Sandford Fleming

Sir Sandford Fleming, (January 7, 1827 – July 22, 1915) was a Scottish-born Canadian engineer and inventor.

New!!: Prime meridian and Sandford Fleming · See more »

São Miguel Island

São Miguel Island (named for the Archangel Michael or, literally, Portuguese for Saint Michael), is also referred to locally as "The Green Island", is the largest and most populous island in the Portuguese archipelago of the Azores.

New!!: Prime meridian and São Miguel Island · See more »

Sea level

Sea level is generally used to refer to mean sea level (MSL), an average level for the surface of one or more of Earth's oceans from which heights such as elevations may be measured.

New!!: Prime meridian and Sea level · See more »

South Pole

The South Pole, also known as the Geographic South Pole, Celestial South Pole, or Terrestrial South Pole, is one of the two points where the Earth's axis of rotation intersects its surface (also see Celestial pole).

New!!: Prime meridian and South Pole · See more »

Spain

Spain (España), officially the Kingdom of Spain (Reino de España), is a sovereign state located on the Iberian Peninsula in southwestern Europe.

New!!: Prime meridian and Spain · See more »

Stockholm

Stockholm () is the capital of Sweden and the most populous city in the Nordic region, with 914,909 people living in the municipality, approximately 1.4 million in the urban area, and 2.2 million in the metropolitan area.

New!!: Prime meridian and Stockholm · See more »

Stockholm Observatory

The Stockholm Observatory (Swedish: Stockholms observatorium) is an astronomical institution in Stockholm, Sweden, founded in the 18th century and today part of Stockholm University.

New!!: Prime meridian and Stockholm Observatory · See more »

Strabo

Strabo (Στράβων Strabōn; 64/63 BC – c. AD 24), was a Greek geographer, philosopher, and historian.

New!!: Prime meridian and Strabo · See more »

Submarine communications cable

A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean.

New!!: Prime meridian and Submarine communications cable · See more »

Sunspot

Sunspots are temporary phenomena on the photosphere of the Sun that appear visibly as dark spots compared to surrounding regions.

New!!: Prime meridian and Sunspot · See more »

Tenerife

Tenerife is the largest and most populous island of the seven Canary Islands; it is also the most populated island of Spain, with a land area of and 898,680 inhabitants, 43 percent of the total population of the Canary Islands.

New!!: Prime meridian and Tenerife · See more »

Tenerife meridian

The Tenerife meridian was the prime meridian of choice for Dutch cartographers and navigators from the 1640s until the beginning of the 19th century.

New!!: Prime meridian and Tenerife meridian · See more »

The Nautical Almanac

The Nautical Almanac has been the familiar name for a series of official British almanacs published under various titles since the first issue of The Nautical Almanac and Astronomical Ephemeris, for 1767: this was the first nautical almanac ever to contain data dedicated to the convenient determination of longitude at sea.

New!!: Prime meridian and The Nautical Almanac · See more »

Thomas Godfrey (inventor)

Thomas Godfrey (December 1704 – December 1749) was an optician and inventor in the American colonies, who around 1730 invented the octant.

New!!: Prime meridian and Thomas Godfrey (inventor) · See more »

Titan (moon)

Titan (or Saturn VI) is the largest moon of Saturn.

New!!: Prime meridian and Titan (moon) · See more »

Treaty of Tordesillas

The Treaty of Tordesillas (Tratado de Tordesilhas, Tratado de Tordesillas), signed at Tordesillas on June 7, 1494, and authenticated at Setúbal, Portugal, divided the newly discovered lands outside Europe between Portugal and the Crown of Castile, along a meridian 370 leagues west of the Cape Verde islands, off the west coast of Africa.

New!!: Prime meridian and Treaty of Tordesillas · See more »

Ujjain

Ujjain (also known as Ujain, Ujjayini, Avanti, Avantika, Avantikapuri), is an ancient city situated on the eastern bank of the Kshipra River (Hindi: क्षिप्रा) in the Malwa region of central India.

New!!: Prime meridian and Ujjain · See more »

United Kingdom Ordnance Survey Zero Meridian

The United Kingdom Ordnance Survey Zero Meridian is the prime meridian used by the Ordnance Survey (OSGB36 datum).

New!!: Prime meridian and United Kingdom Ordnance Survey Zero Meridian · See more »

United States

The United States of America (USA), commonly referred to as the United States (U.S.) or America, is a federal republic composed of 50 states, a federal district, five major territories and various possessions.

New!!: Prime meridian and United States · See more »

United States Department of Defense

The Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the government concerned directly with national security and the United States Armed Forces.

New!!: Prime meridian and United States Department of Defense · See more »

Venus

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

New!!: Prime meridian and Venus · See more »

Warsaw

Warsaw (Warszawa; see also other names) is the capital and largest city of Poland.

New!!: Prime meridian and Warsaw · See more »

Warsaw meridian

The Warsaw meridian (południk warszawski) is a meridian line running through Warsaw.

New!!: Prime meridian and Warsaw meridian · See more »

Washington meridian

The Washington meridians are four meridians that were used as prime meridians in the United States and pass through Washington, D.C..

New!!: Prime meridian and Washington meridian · See more »

Washington, D.C.

Washington, D.C., formally the District of Columbia and commonly referred to as "Washington", "the District", or simply "D.C.", is the capital of the United States.

New!!: Prime meridian and Washington, D.C. · See more »

Westerkerk

Westerkerk (Western Church) is a Dutch Protestant church in central Amsterdam in the Netherlands.

New!!: Prime meridian and Westerkerk · See more »

Western Hemisphere

The Western Hemisphere is a geographical term for the half of the Earth that lies west of the Prime Meridian (which crosses Greenwich, London, United Kingdom) and east of the Antimeridian, the other half being called the Eastern Hemisphere.

New!!: Prime meridian and Western Hemisphere · See more »

Winchester

Winchester is a city and the county town of Hampshire.

New!!: Prime meridian and Winchester · See more »

World Geodetic System

The World Geodetic System (WGS) is a standard for use in cartography, geodesy, and navigation including by GPS.

New!!: Prime meridian and World Geodetic System · See more »

180th meridian

The 180th meridian or antimeridian is the meridian which is 180° east or west of the Prime Meridian with which it forms a great circle.

New!!: Prime meridian and 180th meridian · See more »

1st meridian east

The meridian 1° east of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, the Atlantic Ocean, Europe, Africa, the Southern Ocean, and Antarctica to the South Pole.

New!!: Prime meridian and 1st meridian east · See more »

1st meridian west

The meridian 1° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, the Atlantic Ocean, Europe, Africa, the Southern Ocean, and Antarctica to the South Pole.

New!!: Prime meridian and 1st meridian west · See more »

References

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

OutgoingIncoming
Hey! We are on Facebook now! »