An asteroid is a small, solid object in our Solar System, orbiting the Sun. An asteroid is an example of a minor planet (or planetoid), which are much smaller than planets. Most asteroids are believed to be remnants of the protoplanetary disc which were not incorporated into planets during the system's formation. Some asteroids have moons. The vast majority of the asteroids are within the main asteroid belt, with elliptical orbits between those of Mars and Jupiter. Asteroid - Definition. The term "as ...

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Asteroid - Definition Asteroid - Asteroids in the solar system Asteroid - Asteroid classification
Asteroid - Orbit groups and families Asteroid - Spectral classification
Asteroid - Asteroid discovery
Asteroid - Historical discovery methods Asteroid - Modern discovery methods Asteroid - Latest technology: detecting hazardous asteroids
Asteroid - Naming asteroids
Asteroid - The naming format Asteroid - Unnamed asteroids Asteroid - Sources for names Asteroid - Special naming rules
Asteroid - Asteroid symbols Asteroid - Asteroid exploration Asteroid - Asteroids in fiction and film

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Asteroids - Description Asteroids - Technical Description Asteroids - Legacy Asteroids - Ports Asteroids - Lurking Asteroids - Record breaking gameplay Asteroids - Song

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Asteroids are commonly classified into groups based on the characteristics of their orbits and on the details of the spectrum of sunlight they reflect. Asteroid - Orbit groups and families. Many asteroids have been placed in groups and families based on their orbital characteristics. It is customary to name a group of asteroids after the first member of that group to be discovered. Groups are relatively loose dynamical associations, whereas families are much "tighter" and result from the catastrophic break ...

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Asteroid, Asteroid - Definition, Asteroid - Asteroids in the solar system, Asteroid - Asteroid classification, Asteroid - Orbit groups and families, Asteroid - Spectral classification, Asteroid - Asteroid discovery, Asteroid - Historical discovery methods, Asteroid - Modern discovery methods, Asteroid - Latest technology: detecting hazardous asteroids, Asteroid - Naming asteroids, Asteroid - The naming format, Asteroid - Unnamed asteroids, Asteroid - Sources for names, Asteroid - Special naming rules, Asteroid - Asteroid symbols, Asteroid - Asteroid exploration, Asteroid - Asteroids in fiction and film

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Meteor Dream Symbols:

(Source: Myths - Dreams - Symbols)

Related pages: Dream Symbols, Dream Interpretation, Dream Symbol Meteor, Dream Dictionary Meteor, Meaning of dreams about Meteor, Dream Interpretation Meteor, Dream Analysis Meteor, Dreaming of Meteor

Meteor, Meteoroid, Meteoroids, Asteroid

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Meteorite Dream Symbols:

(Source: Myths - Dreams - Symbols)

Related pages: Dream Symbols, Dream Interpretation, Dream Symbol Meteorite, Dream Dictionary Meteorite, Meaning of dreams about Meteorite, Dream Interpretation Meteorite, Dream Analysis Meteorite, Dreaming of Meteorite

Meteorite, Messenger, Self-knowledge, Asteroid

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Until the age of space travel, asteroids were merely pinpricks of light in even the largest telescopes and their shapes and terrain remained a mystery. The first close-up photographs of asteroid-like objects were taken in 1971 when the Mariner 9 probe imaged Phobos and Deimos, the two small moons of Mars, which are probably captured asteroids. These images revealed the irregular, potato-like shapes of most asteroids, as did subsequent images from the Voy ...

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Asteroid, Asteroid - Definition, Asteroid - Asteroids in the solar system, Asteroid - Asteroid classification, Asteroid - Orbit groups and families, Asteroid - Spectral classification, Asteroid - Asteroid discovery, Asteroid - Historical discovery methods, Asteroid - Modern discovery methods, Asteroid - Latest technology: detecting hazardous asteroids, Asteroid - Naming asteroids, Asteroid - The naming format, Asteroid - Unnamed asteroids, Asteroid - Sources for names, Asteroid - Special naming rules, Asteroid - Asteroid symbols, Asteroid - Asteroid exploration, Asteroid - Asteroids in fiction and film

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Hundreds of thousands of asteroids have been discovered within the solar system, and the present rate of discovery is about 5000 per month. As of November 16, 2005, from a total of 305,224 minor planets with calculated orbits, 120,437 asteroids had been calculated well enough to be given official numbers and 12,712 of these had been officially given trivial names to go along with the numbers (at least 610 of which have names requiring diacritics). The lowest-numbered but unnamed minor planet is (3360) 1981 VA; the ...

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Asteroid, Asteroid - Definition, Asteroid - Asteroids in the solar system, Asteroid - Asteroid classification, Asteroid - Orbit groups and families, Asteroid - Spectral classification, Asteroid - Asteroid discovery, Asteroid - Historical discovery methods, Asteroid - Modern discovery methods, Asteroid - Latest technology: detecting hazardous asteroids, Asteroid - Naming asteroids, Asteroid - The naming format, Asteroid - Unnamed asteroids, Asteroid - Sources for names, Asteroid - Special naming rules, Asteroid - Asteroid symbols, Asteroid - Asteroid exploration, Asteroid - Asteroids in fiction and film

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Asteroid - Historical discovery methods. Asteroid discovery methods have drastically improved over the past two centuries. In the last years of the 18th century, Baron Franz Xaver von Zach organized a group of 24 astronomers to search the sky for the "missing planet" predicted at about 2.8 AU from the Sun by the Titius-Bode law, partly as a consequence of the discovery, by Sir William Herschel in 1781, of the planet Uranus at the distance "predicted" by the law. This task required that hand-drawn sky chart ...

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Asteroid, Asteroid - Definition, Asteroid - Asteroids in the solar system, Asteroid - Asteroid classification, Asteroid - Orbit groups and families, Asteroid - Spectral classification, Asteroid - Asteroid discovery, Asteroid - Historical discovery methods, Asteroid - Modern discovery methods, Asteroid - Latest technology: detecting hazardous asteroids, Asteroid - Naming asteroids, Asteroid - The naming format, Asteroid - Unnamed asteroids, Asteroid - Sources for names, Asteroid - Special naming rules, Asteroid - Asteroid symbols, Asteroid - Asteroid exploration, Asteroid - Asteroids in fiction and film

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An asteroid moon is an asteroid that orbits another asteroid. It is thought that many asteroids may possess moons, in some cases quite substantial in size. Asteroids with moons are commonly referred to as binary asteroids. The term double asteroid is sometimes used for systems in which the asteroid and its moon are roughly the same size. The origin of asteroid moons is not currently known with certainty, and a variety of possibilities exist. A widely accepted theory is that asteroid moons are formed from debris knocked off of the primary asteroid by an impact. Other pairings may be formed when a small ...

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Asteroid moon - Notable asteroids with moons

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For the Velvet Chain album, see Asteroid Belt (album). The asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. It is termed the main belt when contrasted with other concentrations of minor planets, since these may also be termed asteroid belts. In this usage, it often refers only to the greatest concentration of bodies with semi-major axes between the 1:4 and 2:1 Kirkwood gaps at 2.06 and ...

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Asteroid belt - Origin Asteroid belt - Asteroid belt environment Asteroid belt - The Asteroid belt in fiction and film Asteroid belt - Extra-solar belts

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Asteroid - The naming format. Newly discovered asteroids are given a provisional designation consisting of the year of discovery and an alphanumeric code, such as 2001 FH. When its orbit is confirmed, it is given a number, and later may also be given a name (e.g. 1 Ceres). The formal naming convention uses parentheses around the number (e.g. (433) Eros), however, dropping the parentheses is quite common. Informally, especially when a name is repeated in running text, it is common to drop the number altogether, or to drop it after the first mention. < ...

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Asteroid, Asteroid - Definition, Asteroid - Asteroids in the solar system, Asteroid - Asteroid classification, Asteroid - Orbit groups and families, Asteroid - Spectral classification, Asteroid - Asteroid discovery, Asteroid - Historical discovery methods, Asteroid - Modern discovery methods, Asteroid - Latest technology: detecting hazardous asteroids, Asteroid - Naming asteroids, Asteroid - The naming format, Asteroid - Unnamed asteroids, Asteroid - Sources for names, Asteroid - Special naming rules, Asteroid - Asteroid symbols, Asteroid - Asteroid exploration, Asteroid - Asteroids in fiction and film

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(243) Ida I Dactyl is a tiny asteroid moon (diameter 1.4 km) that orbits asteroid 243 Ida. It was imaged by the Galileo spacecraft on August 28, 1993; the Galileo mission member Ann Harch, while examining the delayed image downloads, discovered it on February 17, 1994. It was provisionally designated S/1993 (243) 1. The satellite was named after the mythical creatures called dactyls who ...

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Vulcanoids are hypothetical asteroids that may orbit in a dynamically stable zone between 0.08 and 0.21 astronomical units from the Sun, well within the orbit of Mercury. They take their name from the hypothetical planet Vulcan, which eighteenth-century astronomers fruitlessly searched for to explain the excess precession of Mercury's perihelion. The anomaly in Mercury's orbit later turned out to be an effect explained by general relativity ...

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The Aten asteroids are a group of near-Earth asteroids, named after the first of the group to be discovered (2062 Aten, discovered January 7, 1976 by Eleanor F. Helin). They have semi-major axes of less than one astronomical unit, placing them inside the orbit of Earth. Nearly all known Aten asteroids have their aphelion greater than one AU. Those that have their aphelion entirely within the Earth's orbit are known as Apohele asteroids. As of May 2004 there are only two known Apo ...

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Aten asteroid - Related topics

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Damocloids are asteroids such as 5335 Damocles and 1996 PW that have Halley family or long-period highly eccentric orbits typical of periodic comets such as Comet Halley, but without showing a cometary coma or tail. Damocloids are believed to be nuclei of Halley-type comets that have lost all their volatile materials due to outgassing. Such comets are believed to originate from the Oort cloud. This hypothesis is strengthened by the fact that a number of objects thought to be Damocloids (and assigned minor planet provisional des ...

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Damocloid asteroid - External link

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Asteroids are assigned a type based on spectral shape, color, and sometimes albedo. These types are thought to correspond to an asteroid's surface composition. For small bodies which are not internally differentiated, the surface and internal compositions are presumably similar, while large bodies such as 1 Ceres and 4 Vesta are known to have internal structure. A list of types can be found at Category:asteroid spectral classes Asteroid spectral types - Present-day classifications. The present-day classific ...

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Asteroid spectral types - Present-day classifications
Asteroid spectral types - Tholen classification Asteroid spectral types - SMASS classification
Asteroid spectral types - End notes

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Armageddon is a 1998 disaster film/science fiction film about a group of blue-collar deep-core drillers who are sent by NASA to deflect an asteroid on a collision course with Earth. It was directed by Michael Bay and produced by Jerry Bruckheimer, and featured Bruce Willis, Billy Bob Thornton, Ben Affleck and Liv Tyler. The film's tagline is For Love. For Honor. For Mankind. Armageddon was released during a period when disaster movies were seeing a comeback. Another asteroid impact movie, Deep Impact, was made the same year, along with a reprise of Godzilla. Th ...

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Armageddon film - Box Office Armageddon film - Soundtrack Armageddon film - Trivia

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The first few asteroids discovered were assigned symbols like the ones traditionally used to designate Earth, the Moon, the Sun and planets. The symbols quickly became ungainly, hard to draw and recognise. By the end of 1851 there were 15 known asteroids, each (except one) with its own symbol. The first four's main variants are shown here: 1 Ceres 2 Pallas 3 Juno 4 Vesta Johann Franz Encke made a major change in the Berliner Astronomisches Jahrbuch (BAJ, "Berlin Astronom ...

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Asteroid, Asteroid - Definition, Asteroid - Asteroids in the solar system, Asteroid - Asteroid classification, Asteroid - Orbit groups and families, Asteroid - Spectral classification, Asteroid - Asteroid discovery, Asteroid - Historical discovery methods, Asteroid - Modern discovery methods, Asteroid - Latest technology: detecting hazardous asteroids, Asteroid - Naming asteroids, Asteroid - The naming format, Asteroid - Unnamed asteroids, Asteroid - Sources for names, Asteroid - Special naming rules, Asteroid - Asteroid symbols, Asteroid - Asteroid exploration, Asteroid - Asteroids in fiction and film

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Minor planets, or planetoids are minor bodies of the Solar system orbiting the Sun (or of other planetary systems orbiting other stars) that are larger than meteoroids (the largest of which might be taken to be around 10 meters or so across) but smaller than major planets (Mercury having a diameter of about 4880 km). The term minor planet is sometimes used as a synonym for asteroid though this is technically incorrect; asteroids are one group of minor planets, a category which also includes Trans-Neptunian objects and ot ...

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Minor planet - Groups out to the orbit of Earth Minor planet - Groups out to the orbit of Mars Minor planet - The main asteroid belt
Minor planet - Families within the main asteroid belt
Minor planet - Other groups out to the orbit of Jupiter Minor planet - Groups beyond the orbit of Jupiter Minor planet - Quasi-satellites and horseshoe objects

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99942 Apophis (previously better known by its provisional designation 2004 MN4) is a Near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a relatively large probability that it would strike the Earth in 2029. However, additional observations provided improved predictions that eliminated the possibility of an impact on Earth or the Moon in 2029. A future impact on April 13, 2036, is still possible, keeping the asteroid at level 1 on the Torino impact hazard ...

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99942 Apophis - Close approaches 99942 Apophis - Naming 99942 Apophis - Basic data 99942 Apophis - Discovery 99942 Apophis - History of estimates 99942 Apophis - Possible impact effects

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