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Vulcan (hypothetical planet)

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Vulcan is a small hypothetical planet that was proposed to exist in an orbit between Mercury and the Sun. [1]

83 relations: Albert Einstein, Apparent magnitude, Apsidal precession, Arthur C. Clarke's Mysterious World, Asteroid, Benjamin Valz, Christian Heinrich Friedrich Peters, Classical mechanics, Comet, Conjunction (astronomy), Denver, Detroit Observatory, Dowling College, Earth, Ecliptic, Edmond Modeste Lescarbault, Elongation (astronomy), Emmanuel Liais, Fictional planets of the Solar System, François Arago, Franz von Gruithuisen, French Academy of Sciences, French people, General relativity, Greenwich Mean Time, Hypothetical moon of Mercury, Isaac Asimov, Isaac Newton, Istanbul, James Craig Watson, Johns Hopkins University Press, Legion of Honour, Lewis A. Swift, List of Mercury-crossing minor planets, List of reported UFO sightings, Mathematician, Mercury (planet), Michigan, Minor planet, Minute and second of arc, Monthly Notices of the Royal Astronomical Society, Nemesis (hypothetical star), Neptune, Newton's law of universal gravitation, Newton's laws of motion, Orbit, Orgères-en-Beauce, Paris, Paris Observatory, Perihelion and aphelion, ..., Planet, Planet Nine, Planets beyond Neptune, Random House, Refracting telescope, Rio de Janeiro, Rochester, New York, Rodolphe Radau, Roman mythology, Semi-major and semi-minor axes, Solar and Heliospheric Observatory, Solar eclipse of July 29, 1878, Solar eclipse of May 29, 1919, STEREO, Sun, Sunspot, Telescope, The New York Times, The Spectator, Theory of relativity, Theta Cancri, Transit (astronomy), Transit of Mercury, Transit of Venus, Turkey, Tyche (hypothetical planet), Urbain Le Verrier, Venus, Volcano, Vulcan (mythology), Vulcanoid, Washington Territory, World Scientific. Expand index (33 more) »

Albert Einstein

Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).

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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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Apsidal precession

In celestial mechanics, apsidal precession or orbital precession is the precession (rotation) of the orbit of a celestial body.

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Arthur C. Clarke's Mysterious World

Arthur C. Clarke's Mysterious World is a thirteen-part British television series looking at unexplained phenomena from around the world.

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Asteroids are minor planets, especially those of the inner Solar System.

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Benjamin Valz

Jean Elias Benjamin Valz (May 27, 1787 – April 22, 1867) was a French astronomer.

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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 mechanics

Classical mechanics describes the motion of macroscopic objects, from projectiles to parts of machinery, and astronomical objects, such as spacecraft, planets, stars and galaxies.

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A comet is an icy small Solar System body that, when passing close to the Sun, warms and begins to release gases, a process called outgassing.

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Conjunction (astronomy)

In astronomy, a conjunction occurs when two astronomical objects or spacecraft have either the same right ascension or the same ecliptic longitude, usually as observed from Earth.

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Denver, officially the City and County of Denver, is the capital and most populous municipality of the U.S. state of Colorado.

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Detroit Observatory

The Detroit Observatory is located on the corner of Observatory and Ann streets in Ann Arbor, Michigan.

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Dowling College

Dowling College was a private co-educational college in Long Island, New York, United States.

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Earth is the third planet from the Sun and the only astronomical object known to harbor life.

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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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Edmond Modeste Lescarbault

Edmond Modeste Lescarbault (1814, Châteaudun - 1894), was a French doctor and an amateur astronomer, best remembered for his 1859 supposed observation of the non-existent planet Vulcan.

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Elongation (astronomy)

In astronomy, a planet's elongation is the angular separation between the Sun and the planet, with Earth as the reference point.

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Emmanuel Liais

Emmanuel Liais (15 February 1826–5 March 1900) was a French astronomer, botanist and explorer who spent many years in Brazil.

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Fictional planets of the Solar System

The fictional portrayal of our Solar System has often included planets, moons, and other celestial objects which do not actually exist in reality.

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François Arago

Dominique François Jean Arago (Domènec Francesc Joan Aragó), known simply as François Arago (Catalan: Francesc Aragó) (26 February 17862 October 1853), was a French mathematician, physicist, astronomer, freemason, supporter of the carbonari and politician.

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Franz von Gruithuisen

Baron Franz von Paula (Franciscus de Paula) Gruithuisen (March 19, 1774 – June 21, 1852) was a Bavarian physician and astronomer.

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French Academy of Sciences

The French Academy of Sciences (French: Académie des sciences) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research.

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French people

The French (Français) are a Latin European ethnic group and nation who are identified with the country of France.

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General relativity

General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.

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Greenwich Mean Time

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London.

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Hypothetical moon of Mercury

Mercury's moon would be an undiscovered natural satellite orbiting the planet Mercury.

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Isaac Asimov

Isaac Asimov (January 2, 1920 – April 6, 1992) was an American writer and professor of biochemistry at Boston University.

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Isaac Newton

Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, astronomer, theologian, author and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution.

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Istanbul (or or; İstanbul), historically known as Constantinople and Byzantium, is the most populous city in Turkey and the country's economic, cultural, and historic center.

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James Craig Watson

James Craig Watson (January 28, 1838 – November 22, 1880) was a Canadian-American astronomer, discoverer of comets and minor planets, director of the Ann Arbor Observatory, and awarded with the Lalande Prize in 1869.

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Johns Hopkins University Press

The Johns Hopkins University Press (also referred to as JHU Press or JHUP) is the publishing division of Johns Hopkins University.

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Legion of Honour

The Legion of Honour, with its full name National Order of the Legion of Honour (Ordre national de la Légion d'honneur), is the highest French order of merit for military and civil merits, established in 1802 by Napoléon Bonaparte and retained by all the divergent governments and regimes later holding power in France, up to the present.

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Lewis A. Swift

Lewis A. Swift (February 29, 1820 – January 5, 1913) was an American astronomer.

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List of Mercury-crossing minor planets

A Mercury crosser is an asteroid whose orbit crosses that of Mercury.

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List of reported UFO sightings

This is a partial list of sightings of alleged unidentified flying objects (UFOs), including reports of close encounters and abductions.

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A mathematician is someone who uses an extensive knowledge of mathematics in his or her work, typically to solve mathematical problems.

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Mercury (planet)

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

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Michigan is a state in the Great Lakes and Midwestern regions of the United States.

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Minor planet

A minor planet is an astronomical object in direct orbit around the Sun (or more broadly, any star with a planetary system) that is neither a planet nor exclusively classified as a comet.

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Minute and second of arc

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

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Monthly Notices of the Royal Astronomical Society

Monthly Notices of the Royal Astronomical Society (MNRAS) is a peer-reviewed scientific journal covering research in astronomy and astrophysics.

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Nemesis (hypothetical star)

Nemesis is a hypothetical red dwarf or brown dwarf, originally postulated in 1984 to be orbiting the Sun at a distance of about 95,000 AU (1.5 light-years), somewhat beyond the Oort cloud, to explain a perceived cycle of mass extinctions in the geological record, which seem to occur more often at intervals of 26 million years.

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Neptune is the eighth and farthest known planet from the Sun in the Solar System.

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Newton's law of universal gravitation

Newton's law of universal gravitation states that a particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

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Newton's laws of motion

Newton's laws of motion are three physical laws that, together, laid the foundation for classical mechanics.

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In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.

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Orgères-en-Beauce is a commune in the Eure-et-Loir department in northern France.

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Paris is the capital and most populous city of France, with an area of and a population of 2,206,488.

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Paris Observatory

The Paris Observatory (Observatoire de Paris or Observatoire de Paris-Meudon), a research institution of PSL Research University, is the foremost astronomical observatory of France, and one of the largest astronomical centres in the world.

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Perihelion and aphelion

The perihelion of any orbit of a celestial body about the Sun is the point where the body comes nearest to the Sun.

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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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Planet Nine

Planet Nine is a hypothetical planet in the outer region of the Solar System.

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Planets beyond Neptune

Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit.

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Random House

Random House is an American book publisher and the largest general-interest paperback publisher in the world.

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Refracting telescope

A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope).

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Rio de Janeiro

Rio de Janeiro (River of January), or simply Rio, is the second-most populous municipality in Brazil and the sixth-most populous in the Americas.

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Rochester, New York

Rochester is a city on the southern shore of Lake Ontario in western New York.

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Rodolphe Radau

Jean Charles Rodolphe Radau (January 22, 1835 – December 21, 1911) was an astronomer and mathematician who worked in Paris at the Revue des deux Mondes for most of his life.

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Roman mythology

Roman mythology is the body of traditional stories pertaining to ancient Rome's legendary origins and religious system, as represented in the literature and visual arts of the Romans.

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Semi-major and semi-minor axes

In geometry, the major axis of an ellipse is its longest diameter: a line segment that runs through the center and both foci, with ends at the widest points of the perimeter.

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Solar and Heliospheric Observatory

The Solar and Heliospheric Observatory (SOHO) is a spacecraft built by a European industrial consortium led by Matra Marconi Space (now Astrium) that was launched on a Lockheed Martin Atlas II AS launch vehicle on December 2, 1995, to study the Sun, and has discovered over 3000 comets.

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Solar eclipse of July 29, 1878

A total solar eclipse occurred on July 29, 1878, over much of North America including the region of the Rocky Mountains.

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Solar eclipse of May 29, 1919

A total solar eclipse occurred on May 29, 1919.

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STEREO (Solar Terrestrial Relations Observatory) is a solar observation mission.

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

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Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas.

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A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).

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The New York Times

The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.

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The Spectator

The Spectator is a weekly British magazine on politics, culture, and current affairs.

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Theory of relativity

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity.

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Theta Cancri

Theta Cancri, Latinized from θ Cancri, is a multiple star system in the zodiac constellation of Cancer, 410 light years from Earth.

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Transit (astronomy)

In astronomy, a transit or astronomical transit is the phenomenon of at least one celestial body appearing to move across the face of another celestial body, hiding a small part of it, as seen by an observer at some particular vantage point.

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Transit of Mercury

A transit of Mercury across the Sun takes place when the planet Mercury passes directly between the Sun and a superior planet, becoming visible against (and hence obscuring a small portion of) the solar disk.

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Transit of Venus

A transit of Venus across the Sun takes place when the planet Venus passes directly between the Sun and a superior planet, becoming visible against (and hence obscuring a small portion of) the solar disk.

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Turkey (Türkiye), officially the Republic of Turkey (Türkiye Cumhuriyeti), is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe.

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Tyche (hypothetical planet)

Tyche is a hypothetical gas giant located in the Solar System's Oort cloud, first proposed in 1999 by astrophysicists John Matese, Patrick Whitman and Daniel Whitmire of the University of Louisiana at Lafayette.

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Urbain Le Verrier

Urbain Jean Joseph Le Verrier (11 March 1811 – 23 September 1877) was a French mathematician who specialized in celestial mechanics and is best known for predicting the existence and position of Neptune using only mathematics.

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

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A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.

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Vulcan (mythology)

Vulcan (Latin: Volcānus or Vulcānus) is the god of fire including the fire of volcanoes, metalworking, and the forge in ancient Roman religion and myth.

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The vulcanoids are a hypothetical population of asteroids that orbit the Sun in a dynamically stable zone inside the orbit of the planet Mercury.

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Washington Territory

The Territory of Washington was an organized incorporated territory of the United States that existed from March 2, 1853, until November 11, 1889, when the territory was admitted to the Union as the State of Washington.

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World Scientific

World Scientific Publishing is an academic publisher of scientific, technical, and medical books and journals headquartered in Singapore.

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Redirects here:

0th planet, Intramercurial planet, Planet Vulcan, Transit of Vulcan, Vulcan (astronomy), Vulcan (planet), Zeroth planet.


[1] https://en.wikipedia.org/wiki/Vulcan_(hypothetical_planet)

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