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116 relations: Absorption band, Accretion (astrophysics), Accretion disk, Albedo, Alexander Pope, Ammonia, Antifreeze, Aperture, Apparent magnitude, Ariel (The Tempest), Axial tilt, Bar (unit), Bond albedo, Canyon, Carbon, Carbon dioxide, Carbon monoxide, Carbonate, Cassini–Huygens, Chasma, Clathrate hydrate, Crater counting, Cryovolcano, Crystal, Dione (moon), Equator, Equinox, European Southern Observatory, Eutectic system, Extensional tectonics, Fault scarp, Ganymede (moon), Geologic map, Graben, Gravitational constant, Hubble Space Telescope, Hydrate, Hydrosphere, Icarus (journal), Ice, Impact crater, Infrared, Infrared spectroscopy, John Herschel, Jupiter, Kachina Chasmata, Kelvin, Mantle (geology), Mass, Methane, ..., Midnight sun, Miranda (moon), Monthly Notices of the Royal Astronomical Society, Moons of Saturn, Moons of Uranus, NASA Uranus orbiter and probe, Nitrogen, Oberon (moon), Observational error, Occultation, Opposition surge, Orbital eccentricity, Orbital inclination, Orbital period, Orbital resonance, Organic compound, Outgassing, Palimpsest (planetary astronomy), Pascal (unit), Perihelion and aphelion, Planet, Planetary core, Planetary differentiation, Planetary Science Decadal Survey, Plasma (physics), Pluto, Polar night, Primordial nuclide, Radioactive decay, Residue (chemistry), Ridge, Rock (geology), Rotation period, Salt (chemistry), Saturn, Shield volcano, Sky & Telescope, Solstice, Space probe, Spectroscopy, Spheroid, Sputtering, Stratigraphic unit, Stress (mechanics), Sun, Sylph, Tethys (moon), The Planetary Society, The Rape of the Lock, The Tempest, Tholin, Tidal force, Tidal heating, Tidal locking, Titania (moon), Trough (geology), Ultraviolet, Umbriel (moon), Uranus, Vallis (planetary geology), Voyager 2, William Herschel, William Lassell, William Shakespeare, Yangoor (crater), Zenith. Expand index (66 more) »
Absorption band
According to quantum mechanics, atoms and molecules can only hold certain defined quantities of energy, or exist in specific states.
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Accretion (astrophysics)
In astrophysics, accretion is the accumulation of particles into a massive object by gravitationally attracting more matter, typically gaseous matter, in an accretion disk.
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Accretion disk
An accretion disk is a structure (often a circumstellar disk) formed by diffused material in orbital motion around a massive central body.
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Albedo
Albedo (albedo, meaning "whiteness") is the measure of the diffuse reflection of solar radiation out of the total solar radiation received by an astronomical body (e.g. a planet like Earth).
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Alexander Pope
Alexander Pope (21 May 1688 – 30 May 1744) was an 18th-century English poet.
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Ammonia
Ammonia is a compound of nitrogen and hydrogen with the formula NH3.
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Antifreeze
An antifreeze is an additive which lowers the freezing point of a water-based liquid and increases its boiling point.
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Aperture
In optics, an aperture is a hole or an opening through which light travels.
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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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Ariel (The Tempest)
Ariel is a spirit who appears in William Shakespeare's play The Tempest.
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Axial tilt
In astronomy, axial tilt, also known as obliquity, is the angle between an object's rotational axis and its orbital axis, or, equivalently, the angle between its equatorial plane and orbital plane.
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Bar (unit)
The bar is a metric unit of pressure, but is not approved as part of the International System of Units (SI).
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Bond albedo
The Bond albedo, named after the American astronomer George Phillips Bond (1825–1865), who originally proposed it, is the fraction of power in the total electromagnetic radiation incident on an astronomical body that is scattered back out into space.
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Canyon
A canyon (Spanish: cañón; archaic British English spelling: cañon) or gorge is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic timescales.
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Carbon
Carbon (from carbo "coal") is a chemical element with symbol C and atomic number 6.
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Carbon dioxide
Carbon dioxide (chemical formula) is a colorless gas with a density about 60% higher than that of dry air.
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Carbon monoxide
Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air.
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Carbonate
In chemistry, a carbonate is a salt of carbonic acid (H2CO3), characterized by the presence of the carbonate ion, a polyatomic ion with the formula of.
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Cassini–Huygens
The Cassini–Huygens mission, commonly called Cassini, was a collaboration between NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a probe to study the planet Saturn and its system, including its rings and natural satellites.
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Chasma
In planetary geology, a chasma (plural: chasmata) is a deep, elongated, steep-sided depression.
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Clathrate hydrate
Clathrate hydrates, or gas clathrates, gas hydrates, clathrates, hydrates, etc., are crystalline water-based solids physically resembling ice, in which small non-polar molecules (typically gases) or polar molecules with large hydrophobic moieties are trapped inside "cages" of hydrogen bonded, frozen water molecules.
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Crater counting
Crater counting is a method for estimating the age of a planet's surface.
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Cryovolcano
A cryovolcano (sometimes informally called an ice volcano) is a type of volcano that erupts volatiles such as water, ammonia or methane, instead of molten rock.
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Crystal
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.
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Dione (moon)
Dione (Διώνη) is a moon of Saturn.
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Equator
An equator of a rotating spheroid (such as a planet) is its zeroth circle of latitude (parallel).
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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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European Southern Observatory
The European Southern Observatory (ESO) is a 15-nation intergovernmental research organization for ground-based astronomy.
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Eutectic system
A eutectic system from the Greek "ευ" (eu.
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Extensional tectonics
Extensional tectonics is concerned with the structures formed, and the tectonic processes associated with, the stretching of a planetary body's crust or lithosphere.
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Fault scarp
A fault scarp is a small step or offset on the ground surface where one side of a fault has moved vertically with respect to the other.
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Ganymede (moon)
Ganymede (Jupiter III) is the largest and most massive moon of Jupiter and in the Solar System.
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Geologic map
A geologic map or geological map is a special-purpose map made to show geological features.
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Graben
In geology, a graben is a depressed block of the Earth's crust bordered by parallel faults.
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Gravitational constant
The gravitational constant (also known as the "universal gravitational constant", the "Newtonian constant of gravitation", or the "Cavendish gravitational constant"), denoted by the letter, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's general theory of relativity.
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Hubble Space Telescope
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation.
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Hydrate
In chemistry, a hydrate is a substance that contains water or its constituent elements.
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Hydrosphere
The hydrosphere (from Greek ὕδωρ hydōr, "water" and σφαῖρα sphaira, "sphere") is the combined mass of water found on, under, and above the surface of a planet, minor planet or natural satellite.
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Icarus (journal)
Icarus is a scientific journal dedicated to the field of planetary science.
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Ice
Ice is water frozen into a solid state.
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Impact crater
An impact crater is an approximately circular depression in the surface of a planet, moon, or other solid body in the Solar System or elsewhere, formed by the hypervelocity impact of a smaller body.
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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Infrared spectroscopy
Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) involves the interaction of infrared radiation with matter.
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John Herschel
Sir John Frederick William Herschel, 1st Baronet (7 March 1792 – 11 May 1871) was an English polymath, mathematician, astronomer, chemist, inventor, experimental photographer who invented the blueprint, and did botanical work.
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Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
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Kachina Chasmata
The Kachina Chasmata are the longest canyon or system of canyons on the surface of the Uranian moon Ariel.
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Kelvin
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
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Mantle (geology)
The mantle is a layer inside a terrestrial planet and some other rocky planetary bodies.
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Mass
Mass is both a property of a physical body and a measure of its resistance to acceleration (a change in its state of motion) when a net force is applied.
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Methane
Methane is a chemical compound with the chemical formula (one atom of carbon and four atoms of hydrogen).
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Midnight sun
The midnight sun is a natural phenomenon that occurs in the summer months in places north of the Arctic Circle or south of the Antarctic Circle, when the sun remains visible at the local midnight.
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Miranda (moon)
Miranda, also designated Uranus V, is the smallest and innermost of Uranus's five round satellites.
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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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Moons of Saturn
The moons of Saturn are numerous and diverse, ranging from tiny moonlets less than 1 kilometer across to the enormous Titan, which is larger than the planet Mercury.
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Moons of Uranus
Uranus is the seventh planet of the Solar System; it has 27 known moons, all of which are named after characters from the works of William Shakespeare and Alexander Pope.
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NASA Uranus orbiter and probe
A Uranus orbiter and probe is a mission concept for study of the planet Uranus.
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Nitrogen
Nitrogen is a chemical element with symbol N and atomic number 7.
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Oberon (moon)
Oberon, also designated, is the outermost major moon of the planet Uranus.
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Observational error
Observational error (or measurement error) is the difference between a measured value of a quantity and its true value.
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Occultation
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer.
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Opposition surge
The opposition surge (sometimes known as the opposition effect, opposition spike or Seeliger effect) is the brightening of a rough surface, or an object with many particles, when illuminated from directly behind the observer.
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Orbital eccentricity
The orbital eccentricity of an astronomical object is a parameter that determines the amount by which its orbit around another body deviates from a perfect circle.
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Orbital inclination
Orbital inclination measures the tilt of an object's orbit around a celestial body.
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Orbital period
The orbital period is the time a given astronomical object takes to complete one orbit around another object, and applies in astronomy usually to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.
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Orbital resonance
In celestial mechanics, an orbital resonance occurs when orbiting bodies exert a regular, periodic gravitational influence on each other, usually because their orbital periods are related by a ratio of small integers.
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Organic compound
In chemistry, an organic compound is generally any chemical compound that contains carbon.
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Outgassing
Outgassing (sometimes called offgassing, particularly when in reference to indoor air quality) is the release of a gas that was dissolved, trapped, frozen or absorbed in some material.
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Palimpsest (planetary astronomy)
A palimpsest, in planetary astronomy, is an ancient crater on an icy moon of the outer Solar System whose relief has disappeared due to creep of the icy surface ("viscous relaxation") or subsequent cryovolcanic outpourings, leaving a circular albedo feature, perhaps with a "ghost" of a rim.
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Pascal (unit)
The pascal (symbol: Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus and ultimate tensile strength.
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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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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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Planetary core
The planetary core consists of the innermost layer(s) of a planet; which may be composed of solid and liquid layers.
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Planetary differentiation
In planetary science, planetary differentiation is the process of separating out different constituents of a planetary body as a consequence of their physical or chemical behaviour, where the body develops into compositionally distinct layers; the denser materials of a planet sink to the center, while less dense materials rise to the surface, generally in a magma ocean.
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Planetary Science Decadal Survey
The Planetary Science Decadal Survey is a publication of the United States National Research Council produced for NASA and other United States Government Agencies such as the National Science Foundation.
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Plasma (physics)
Plasma (Henry George Liddell, Robert Scott, A Greek English Lexicon, on Perseus) is one of the four fundamental states of matter, and was first described by chemist Irving Langmuir in the 1920s.
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Pluto
Pluto (minor planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.
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Polar night
The polar night occurs in the northernmost and southernmost regions of the Earth when the night lasts for more than 24 hours.
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Primordial nuclide
In geochemistry, geophysics and geonuclear physics, primordial nuclides, also known as primordial isotopes, are nuclides found on Earth that have existed in their current form since before Earth was formed.
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Radioactive decay
Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron in the case of internal conversion.
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Residue (chemistry)
In chemistry residue is whatever remains or acts as a contaminant after a given class of events.
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Ridge
A ridge or mountain ridge are geological features consisting of a chain of mountains or hills that form a continuous elevated crest for some distance.The sides of the ridge slope away from narrow top on either side.The line along the crest formed by the highest points, with the terrain dropping down on either side, is called the ridgeline.
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Rock (geology)
Rock or stone is a natural substance, a solid aggregate of one or more minerals or mineraloids.
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Rotation period
In astronomy, the rotation period of a celestial object is the time that it takes to complete one revolution around its axis of rotation relative to the background stars.
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Salt (chemistry)
In chemistry, a salt is an ionic compound that can be formed by the neutralization reaction of an acid and a base.
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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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Shield volcano
A shield volcano is a type of volcano usually composed almost entirely of fluid lava flows.
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Sky & Telescope
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.
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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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Space probe
A space probe is a robotic spacecraft that does not orbit the Earth, but, instead, explores further into outer space.
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Spectroscopy
Spectroscopy is the study of the interaction between matter and electromagnetic radiation.
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Spheroid
A spheroid, or ellipsoid of revolution, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters.
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Sputtering
Sputtering is a process whereby particles are ejected from a solid target material due to bombardment of the target by energetic particles, particularly gas ions in a laboratory.
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Stratigraphic unit
A stratigraphic unit is a volume of rock of identifiable origin and relative age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.
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Stress (mechanics)
In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighboring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material.
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Sun
The Sun is the star at the center of the Solar System.
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Sylph
Sylph (also called sylphid) is a mythological air spirit.
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Tethys (moon)
Tethys (or Saturn III) is a mid-sized moon of Saturn about across.
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The Planetary Society
The Planetary Society is an American internationally active, non-governmental, nonprofit foundation.
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The Rape of the Lock
The Rape of the Lock is a mock-heroic narrative poem written by Alexander Pope.
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The Tempest
The Tempest is a play by William Shakespeare, believed to have been written in 1610–1611, and thought by many critics to be the last play that Shakespeare wrote alone.
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Tholin
Tholins (after the Greek θολός (tholós) "hazy" or "muddy"; from the ancient Greek word meaning "sepia ink") are a wide variety of organic compounds formed by solar ultraviolet irradiation or cosmic rays from simple carbon-containing compounds such as carbon dioxide, methane or ethane, often in combination with nitrogen.
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Tidal force
The tidal force is an apparent force that stretches a body towards the center of mass of another body due to a gradient (difference in strength) in gravitational field from the other body; it is responsible for the diverse phenomena, including tides, tidal locking, breaking apart of celestial bodies and formation of ring systems within Roche limit, and in extreme cases, spaghettification of objects.
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Tidal heating
Tidal heating (also known as tidal working or tidal flexing) occurs through the tidal friction processes: orbital energy is dissipated as heat in either the surface ocean or interior of a planet or satellite.
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Tidal locking
Tidal locking (also called gravitational locking or captured rotation) occurs when the long-term interaction between a pair of co-orbiting astronomical bodies drives the rotation rate of at least one of them into the state where there is no more net transfer of angular momentum between this body (e.g. a planet) and its orbit around the second body (e.g. a star); this condition of "no net transfer" must be satisfied over the course of one orbit around the second body.
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Titania (moon)
No description.
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Trough (geology)
In geology, a trough is a linear structural depression that extends laterally over a distance.
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Ultraviolet
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
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Umbriel (moon)
Umbriel is a moon of Uranus discovered on October 24, 1851, by William Lassell.
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Uranus
Uranus is the seventh planet from the Sun.
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Vallis (planetary geology)
Vallis (plural valles) is the Latin word for valley.
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Voyager 2
Voyager 2 is a space probe launched by NASA on August 20, 1977, to study the outer planets.
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William Herschel
Frederick William Herschel, (Friedrich Wilhelm Herschel; 15 November 1738 – 25 August 1822) was a German-born British astronomer, composer and brother of fellow astronomer Caroline Herschel, with whom he worked.
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William Lassell
William Lassell, (18 June 1799 – 5 October 1880) was an English merchant and astronomer.
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William Shakespeare
William Shakespeare (26 April 1564 (baptised)—23 April 1616) was an English poet, playwright and actor, widely regarded as both the greatest writer in the English language, and the world's pre-eminent dramatist.
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Yangoor (crater)
Yangoor is the largest known crater on the surface of the Uranian moon Ariel.
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Zenith
The zenith is an imaginary point directly "above" a particular location, on the imaginary celestial sphere.
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Redirects here:
Ariel (astronomy), Satellite Ariel, Uranus I.
References
[1] https://en.wikipedia.org/wiki/Ariel_(moon)
