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88 relations: A-type asteroid, Albedo, Ananke (moon), Ananke group, Apparent magnitude, Apsis, Asteroid, Asteroid family, Astronomy, Blue, Brett J. Gladman, C-type asteroid, Caliban (moon), Callirrhoe (moon), Carme group, Carpo (moon), Cassini–Huygens, Collisional family, Color index, Coriolis force, D-type asteroid, Delta-v, E-type asteroid, Earth, Giant planet, Halimede (moon), Harold F. Levison, Heliocentric orbit, Hill sphere, Himalia (moon), Himalia group, Infrared, Joseph A. Burns, Jupiter, Kaare Aksnes, Kozai mechanism, Kuiper belt, List of minor planet discoverers, M-type asteroid, Matthew J. Holman, Meanings of minor planet names: 7001–8000, Megaclite, Natural satellite, Neptune, Neptune trojan, Nereid (moon), Neso (moon), Optical filter, Orbital eccentricity, Orbital inclination, ..., Orbital plane (astronomy), Orbital resonance, Orders of magnitude (length), Osculating orbit, P-type asteroid, Pasiphae (moon), Pasiphae group, Phil Nicholson, Phoebe (moon), Power law, Proper orbital elements, Prospero (moon), Psamathe (moon), Radius, Red, Regular moon, Retrograde and prograde motion, Rotating reference frame, Saturn, Saturn's Gallic group of satellites, Saturn's Inuit group of satellites, Saturn's Norse group of satellites, Secular resonance, Semi-major and semi-minor axes, Setebos (moon), Sinope (moon), Skathi (moon), Sycorax (moon), Synchronous orbit, Temporary satellite, The Astrophysical Journal, Themisto (moon), Three-body force, Tidal locking, Triton (moon), Trojan (astronomy), Uranus, Voyager 2. Expand index (38 more) »
A-type asteroid
A-type asteroids are relatively uncommon inner-belt asteroids that have a strong, broad 1 µm olivine feature and a very reddish spectrum shortwards of 0.7 µm.
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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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Ananke (moon)
Ananke (Ανάγκη) is a retrograde irregular moon of Jupiter.
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Ananke group
The Ananke group is a group of retrograde irregular satellites of Jupiter that follow similar orbits to Ananke and are thought to have a common origin.
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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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Apsis
An apsis (ἁψίς; plural apsides, Greek: ἁψῖδες) is an extreme point in the orbit of an object.
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Asteroid
Asteroids are minor planets, especially those of the inner Solar System.
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Asteroid family
An asteroid family is a population of asteroids that share similar proper orbital elements, such as semimajor axis, eccentricity, and orbital inclination.
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Astronomy
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
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Blue
Blue is one of the three primary colours of pigments in painting and traditional colour theory, as well as in the RGB colour model.
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Brett J. Gladman
Brett James Gladman (born 1966) is a Canadian astronomer, discoverer of moons and minor planets, and a full professor at the University of British Columbia's Department of Physics and Astronomy in Vancouver, British Columbia.
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C-type asteroid
C-type (carbonaceous) asteroids are the most common variety, forming around 75% of known asteroids.
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Caliban (moon)
Caliban is the second-largest retrograde irregular satellite of Uranus.
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Callirrhoe (moon)
Callirrhoe (Greek: Καλλιρρόη), also known as (17), is one of Jupiter's outermost named natural satellites.
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Carme group
The Carme group is a group of retrograde irregular satellites of Jupiter that follow similar orbits to Carme and are thought to have a common origin.
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Carpo (moon)
Carpo (Greek: Καρπώ), also, is a natural satellite of Jupiter.
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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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Collisional family
In astronomy, a collisional family is a group of objects that are thought to have a common origin in an impact (collision).
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Color index
In astronomy, the color index is a simple numerical expression that determines the color of an object, which in the case of a star gives its temperature.
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Coriolis force
In physics, the Coriolis force is an inertial force that acts on objects that are in motion relative to a rotating reference frame.
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D-type asteroid
D-type asteroids have a very low albedo and a featureless reddish spectrum.
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Delta-v
Delta-v (literally "change in velocity"), symbolised as ∆v and pronounced delta-vee, as used in spacecraft flight dynamics, is a measure of the impulse that is needed to perform a maneuver such as launch from, or landing on a planet or moon, or in-space orbital maneuver.
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E-type asteroid
E-type asteroids are asteroids thought to have enstatite (MgSiO3) achondrite surfaces.
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Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
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Giant planet
A giant planet is any massive planet.
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Halimede (moon)
Halimede (Greek: Αλιμήδη), or Neptune IX, is a retrograde irregular satellite of Neptune.
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Harold F. Levison
Harold F. (Hal) Levison is a planetary scientist specializing in planetary dynamics.
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Heliocentric orbit
A heliocentric orbit (also called circumsolar orbit) is an orbit around the barycenter of the Solar System, which is usually located within or very near the surface of the Sun.
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Hill sphere
An astronomical body's Hill sphere is the region in which it dominates the attraction of satellites.
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Himalia (moon)
Himalia is the largest irregular satellite of Jupiter.
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Himalia group
The Himalia group is a group of prograde irregular satellites of Jupiter that follow similar orbits to Himalia and are thought to have a common origin.
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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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Joseph A. Burns
Joseph Burns is a professor at Cornell University with a dual appointment in the Sibley School of Mechanical and Aerospace Engineering (MAE) and the Astronomy department.
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Jupiter
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
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Kaare Aksnes
Kaare Aksnes (born 25 March 1938 in Kvam in Hardanger) is a professor at the Institute for Theoretical Astrophysics at the University of Oslo.
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Kozai mechanism
In celestial mechanics, the Kozai mechanism or Lidov–Kozai mechanism or Kozai–Lidov mechanism, also known as the Kozai, Lidov–Kozai or Kozai–Lidov effect, oscillations, cycles or resonance, is a dynamical phenomenon affecting the orbit of a binary system perturbed by a distant third body under certain conditions, causing the orbit's argument of pericenter to oscillate about a constant value, which in turn leads to a periodic exchange between its eccentricity and inclination.
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Kuiper belt
The Kuiper belt, occasionally called the Edgeworth–Kuiper belt, is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun.
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List of minor planet discoverers
This is a list of all astronomers who are credited by the Minor Planet Center (MPC) with the discovery of one or several minor planets.
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M-type asteroid
M-type asteroids are asteroids of partially known composition; they are moderately bright (albedo 0.1–0.2).
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Matthew J. Holman
Matthew J. Holman (born 1967) is a Smithsonian Astrophysicist and lecturer at Harvard University.
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Meanings of minor planet names: 7001–8000
013 | 7013 Trachet || || Tim Trachet (born 1958), Belgian journalist and science writer.
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Megaclite
Megaclite (Latin: Megaclītē; Greek: Μεγακλειτή), also known as, is a natural satellite of Jupiter.
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Natural satellite
A natural satellite or moon is, in the most common usage, an astronomical body that orbits a planet or minor planet (or sometimes another small Solar System body).
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Neptune
Neptune is the eighth and farthest known planet from the Sun in the Solar System.
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Neptune trojan
Neptune trojans are bodies that orbit the Sun near one of the stable Lagrangian points of Neptune, similar to the trojans of other planets.
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Nereid (moon)
Nereid is the third-largest moon of Neptune.
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Neso (moon)
Neso (Greek: Νησώ), also known as Neptune XIII, is the outermost natural satellite of Neptune.
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Optical filter
An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the optical path, which are either dyed in the bulk or have interference coatings.
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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 plane (astronomy)
The orbital plane of a revolving body is the geometric plane on which its orbit lies.
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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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Orders of magnitude (length)
The following are examples of orders of magnitude for different lengths.
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Osculating orbit
In astronomy, and in particular in astrodynamics, the osculating orbit of an object in space at a given moment in time is the gravitational Kepler orbit (i.e. ellipse or other conic) that it would have about its central body if perturbations were not present.
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P-type asteroid
P-type asteroids have low albedo and a featureless reddish spectrum.
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Pasiphae (moon)
Pasiphae (Πασιφάη; formerly Pasiphaë) is a retrograde irregular satellite of Jupiter.
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Pasiphae group
The Pasiphae group is a group of retrograde irregular satellites of Jupiter that follow similar orbits to Pasiphae and are thought to have a common origin.
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Phil Nicholson
Philip D. Nicholson (born 1951) is an Australian-born professor of astronomy at Cornell University in the Astronomy department specialising in Planetary Sciences.
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Phoebe (moon)
Phoebe (Greek: Φοίβη Phoíbē) is an irregular satellite of Saturn with a mean diameter of 213 km.
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Power law
In statistics, a power law is a functional relationship between two quantities, where a relative change in one quantity results in a proportional relative change in the other quantity, independent of the initial size of those quantities: one quantity varies as a power of another.
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Proper orbital elements
The proper orbital elements of an orbit are constants of motion of an object in space that remain practically unchanged over an astronomically long timescale.
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Prospero (moon)
Prospero is a relatively small retrograde irregular satellite of Uranus discovered on 18 July 1999 by the astrophysicist Matthew Holman and his team, and given the provisional designation S/1999 U 3.
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Psamathe (moon)
Psamathe (Latin: Psamathē; Greek: Ψαμάθη), also known as Neptune X, is a retrograde irregular satellite of Neptune.
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Radius
In classical geometry, a radius of a circle or sphere is any of the line segments from its center to its perimeter, and in more modern usage, it is also their length.
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Red
Red is the color at the end of the visible spectrum of light, next to orange and opposite violet.
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Regular moon
In astronomy, a regular moon is a natural satellite following a relatively close and prograde orbit with little orbital inclination or eccentricity.
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Retrograde and prograde motion
Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is the central object (right figure).
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Rotating reference frame
A rotating frame of reference is a special case of a non-inertial reference frame that is rotating relative to an inertial reference frame.
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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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Saturn's Gallic group of satellites
The Gallic group is a dynamical grouping of the prograde irregular satellites of Saturn following similar orbits.
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Saturn's Inuit group of satellites
The Inuit group is a dynamical grouping of the prograde irregular satellites of Saturn which follow similar orbits.
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Saturn's Norse group of satellites
The Norse group is a large group of retrograde irregular satellites of Saturn.
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Secular resonance
A secular resonance is a type of orbital resonance of two bodies with a synchronized precession.
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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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Setebos (moon)
Setebos is one of the outermost retrograde irregular satellites of Uranus.
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Sinope (moon)
Sinope (Σινώπη) is a retrograde irregular satellite of Jupiter discovered by Seth Barnes Nicholson at Lick Observatory in 1914, and is named after Sinope of Greek mythology.
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Skathi (moon)
Skathi, or Saturn XXVII, is a natural satellite of Saturn.
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Sycorax (moon)
Sycorax is the largest retrograde irregular satellite of Uranus.
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Synchronous orbit
A synchronous orbit is an orbit in which an orbiting body (usually a satellite) has a period equal to the average rotational period of the body being orbited (usually a planet), and in the same direction of rotation as that body.
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Temporary satellite
A temporary satellite is an asteroid which has been captured by the gravitational field of a planet and thus became the planet's natural satellite, but, unlike irregular moons of the larger outer planets of the Solar System, will later leave its orbit around the planet.
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The Astrophysical Journal
The Astrophysical Journal, often abbreviated ApJ (pronounced "ap jay") in references and speech, is a peer-reviewed scientific journal of astrophysics and astronomy, established in 1895 by American astronomers George Ellery Hale and James Edward Keeler.
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Themisto (moon)
Themisto (from Greek: Θεμιστώ), also known as, is a small prograde irregular satellite of Jupiter.
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Three-body force
A three-body force is a force that does not exist in a system of two objects but appears in a three-body system.
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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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Triton (moon)
Triton is the largest natural satellite of the planet Neptune, and the first Neptunian moon to be discovered.
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Trojan (astronomy)
In astronomy, a trojan is a minor planet or moon that shares the orbit of a planet or larger moon, wherein the trojan remains in the same, stable position relative to the larger object.
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Uranus
Uranus is the seventh planet from the Sun.
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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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Redirects here:
Irregular moons, Irregular natural satellite, Irregular natural satellites, Irregular satellite, Irregular satellites.
References
[1] https://en.wikipedia.org/wiki/Irregular_moon
