62 relations: Alinda asteroid, Apollo asteroid, Apparent magnitude, Arecibo Observatory, ArXiv, Asterix, Asteroid, Asteroid spectral types, Astronomer, Astronomical unit, Berlin Philharmonic, Bond albedo, Catchphrase, Celtic polytheism, CERGA Observatory, Chain letter, Chang'e 2, Chaos theory, Christian Pollas, Comics, Degree (angle), Earth, France, Franck Marchis, Goldstone Deep Space Communications Complex, Goldstone Solar System Radar, Gustav Holst, Julian day, Julian year (astronomy), Jupiter, List of asteroid close approaches to Earth, List of Mars-crossing minor planets, List of minor planets and comets visited by spacecraft, List of slow rotators (minor planets), Lost minor planet, Lunar distance (astronomy), Lyapunov exponent, Minimum orbit intersection distance, Moon, Naked eye, Near-Earth object, Orbital inclination, Orbital resonance, Perturbation (astronomy), Potentially hazardous object, Precession, Radar astronomy, Rotation period, Rubble pile, S-type asteroid, ..., Semi-major and semi-minor axes, Siding Spring Survey, Silicate, Sun, Terrestrial planet, The Planetary Society, The Planets, Toutatis, Transit (astronomy), Uncertainty parameter, Wiesław Z. Wiśniewski, Yarkovsky–O'Keefe–Radzievskii–Paddack effect. Expand index (12 more) » « Shrink index
The Alinda asteroids are a dynamical group of asteroids with a semi-major axis of about 2.5 AU and an orbital eccentricity approximately between 0.4 and 0.65.
The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, discovered by German astronomer Karl Reinmuth in the 1930s.
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
The Arecibo Observatory is a radio telescope in the municipality of Arecibo, Puerto Rico.
arXiv (pronounced "archive") is a repository of electronic preprints (known as e-prints) approved for publication after moderation, that consists of scientific papers in the fields of mathematics, physics, astronomy, computer science, quantitative biology, statistics, and quantitative finance, which can be accessed online.
Asterix or The Adventures of Asterix (Astérix or Astérix le Gaulois) is a series of French comics.
Asteroids are minor planets, especially those of the inner Solar System.
An asteroid spectral type is assigned to asteroids based on their emission spectrum, color, and sometimes albedo (reflectivity).
An astronomer is a scientist in the field of astronomy who concentrates their studies on a specific question or field outside the scope of Earth.
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
The Berlin Philharmonic (Berliner Philharmoniker) is a German orchestra based in Berlin.
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.
A catchphrase (alternatively spelled catch phrase) is a phrase or expression recognized by its repeated utterance.
Celtic polytheism, commonly known as Celtic paganism, comprises the religious beliefs and practices adhered to by the Iron Age people of Western Europe now known as the Celts, roughly between 500 BCE and 500 CE, spanning the La Tène period and the Roman era, and in the case of the Insular Celts the British and Irish Iron Age.
The CERGA Observatory (Centre de recherches en géodynamique et astrométrie; obs. code: 010) was a scientific department and astronomical station of the Côte d'Azur Observatory in southern France, where several asteroids were discovered during 1984–1993.
A chain letter is a message that attempts to convince the recipient to make a number of copies of the letter and then pass them on to a certain number of recipients (either a predefined number or as many as possible).
Chang'e 2 is a Chinese unmanned lunar probe that was launched on 1 October 2010.
Chaos theory is a branch of mathematics focusing on the behavior of dynamical systems that are highly sensitive to initial conditions.
Christian Pollas (b. 1947) is a French astronomer an discoverer of minor planets and observer of Supernovae.
a medium used to express ideas by images, often combined with text or other visual information.
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees.
Earth is the third planet from the Sun and the only astronomical object known to harbor life.
France, officially the French Republic (République française), is a sovereign state whose territory consists of metropolitan France in Western Europe, as well as several overseas regions and territories.
Franck Marchis (born April 6, 1973 in Caen, France), astronomer and planetary scientist, is best known for his discovery and characterization of multiple asteroids, his study of Io volcanism and imaging of exoplanets, planets around other stars.
The Goldstone Deep Space Communications Complex (GDSCC), commonly called the Goldstone Observatory, is located in the Mojave Desert near Barstow in the U.S. state of California.
The Goldstone Solar System Radar, or GSSR, is a large radar system used for investigating objects in the Solar system.
Gustav Theodore Holst (born Gustavus Theodore von Holst; 21 September 1874 – 25 May 1934) was an English composer, arranger and teacher.
Julian day is the continuous count of days since the beginning of the Julian Period and is used primarily by astronomers.
In astronomy, a Julian year (symbol: a) is a unit of measurement of time defined as exactly 365.25 days of SI seconds each.
Jupiter is the fifth planet from the Sun and the largest in the Solar System.
This is a list of examples where an asteroid or meteoroid travels close to the Earth.
A Mars-crossing asteroid (MCA, also Mars-crosser, MC) is an asteroid whose orbit crosses that of Mars.
The following tables list all minor planets and comets that have been visited by spacecraft.
This is a list of slow rotators—minor planets that have an exceptionally long rotation period.
Lost minor planets are minor planets that observers lose track of due to too short an observation arc to accurately predict the future location of the minor planet.
Lunar distance (LD or \Delta_), also called Earth–Moon distance, Earth–Moon characteristic distance, or distance to the Moon, is a unit of measure in astronomy.
In mathematics the Lyapunov exponent or Lyapunov characteristic exponent of a dynamical system is a quantity that characterizes the rate of separation of infinitesimally close trajectories.
Minimum orbit intersection distance (MOID) is a measure used in astronomy to assess potential close approaches and collision risks between astronomical objects.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite.
Naked eye, also called bare eye or unaided eye, is the practice of engaging in visual perception unaided by a magnifying or light-collecting optical instrument, such as a telescope or microscope.
A near-Earth object (NEO) is any small Solar System body whose orbit can bring it into proximity with Earth.
Orbital inclination measures the tilt of an object's orbit around a celestial body.
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.
In astronomy, perturbation is the complex motion of a massive body subject to forces other than the gravitational attraction of a single other massive body.
A potentially hazardous object (PHO) is a near-Earth object – either an asteroid or a comet – with an orbit that can make exceptionally close approaches to the Earth and large enough to cause significant regional damage in the event of impact.
Precession is a change in the orientation of the rotational axis of a rotating body.
Radar astronomy is a technique of observing nearby astronomical objects by reflecting microwaves off target objects and analyzing the reflections.
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.
In astronomy, a rubble pile is a celestial body that is not a monolith, consisting instead of numerous pieces of rock that have coalesced under the influence of gravity.
S-type asteroids are asteroids with a spectral type that is indicative of a silicaceous (i.e. stony) mineralogical composition, hence the name.
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.
The Siding Spring Survey (SSS) was a near-Earth object search program that used the 0.5 metres Uppsala Southern Schmidt Telescope at Siding Spring Observatory, New South Wales, Australia.
In chemistry, a silicate is any member of a family of anions consisting of silicon and oxygen, usually with the general formula, where 0 ≤ x Silicate anions are often large polymeric molecules with an extense variety of structures, including chains and rings (as in polymeric metasilicate), double chains (as in, and sheets (as in. In geology and astronomy, the term silicate is used to mean silicate minerals, ionic solids with silicate anions; as well as rock types that consist predominantly of such minerals. In that context, the term also includes the non-ionic compound silicon dioxide (silica, quartz), which would correspond to x.
The Sun is the star at the center of the Solar System.
A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals.
The Planetary Society is an American internationally active, non-governmental, nonprofit foundation.
The Planets, Op.
Toutatis or Teutates was a Celtic god worshipped in ancient Gaul and Britain.
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.
The uncertainty parameter U is a parameter introduced by the Minor Planet Center (MPC) to quantify concisely the uncertainty of a perturbed orbital solution for a minor planet.
Wiesław Z. Wiśniewski (May 2, 1931 in Poland – February 28, 1994 in Tucson, Arizona, United States) was a Polish astronomer.
The Yarkovsky–O'Keefe–Radzievskii–Paddack effect, or YORP effect for short, changes the rotation state of a small astronomical body – that is, the body's spin rate and the obliquity of its pole(s) – due to the scattering of solar radiation off its surface and the emission of its own thermal radiation.