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List Of Amor Asteroid Records
The following is a list of current records for Amor asteroid The Amor asteroids are a group of near-Earth asteroids named after the archetype object 1221 Amor . The orbital perihelion of these objects is close to, but greater than, the orbital aphelion of Earth (i.e., the objects do not cross Earth's orbi ...s. External links List of Amor minor planets {{DEFAULTSORT:List Of Amor Asteroid Records Asteroid records * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amor Asteroid
The Amor asteroids are a group of near-Earth asteroids named after the archetype object 1221 Amor . The orbital perihelion of these objects is close to, but greater than, the orbital aphelion of Earth (i.e., the objects do not cross Earth's orbit), with most Amors crossing the orbit of Mars. The Amor asteroid 433 Eros was the first asteroid to be orbited and landed upon by a robotic space probe (NEAR Shoemaker). Definition The orbital characteristics that define an asteroid as being in the Amor group are: * The orbital period is greater than one year; i.e., the orbital semi-major axis (''a'') is greater than 1.0 AU (''a'' > 1.0 AU); * The orbit does not cross that of Earth; i.e., the orbital perihelion (''q'') is greater than Earth's orbital aphelion (''q'' > 1.017 AU); * The object is a near-Earth object (NEO); i.e., ''q'' < 1.3 AU. Populations As of 2019 there are 7427 known Amor asteroids.[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
433 Eros
Eros (minor planet designation: (433) Eros), provisional designation is a stony asteroid of the Amor group and the first discovered and second-largest near-Earth object with an elongated shape and a mean diameter of approximately . Visited by the NEAR Shoemaker space probe in 1998, it became the first asteroid ever studied from orbit around the asteroid. The asteroid was discovered by German astronomer C.G. Witt at the Berlin Observatory on 13 August 1898 in an eccentric orbit between Mars and Earth. It was later named after Eros, a god from Greek mythology, the son of Aphrodite. He is identified with the planet Venus. History Discovery Eros was discovered on 13 August 1898 by C.G. Witt at Berlin Urania Observatory and A. Charlois at Nice Observatory. Witt was taking a two-hour exposure of beta Aquarii to secure astrometric positions of asteroid 185 Eunike. Name Eros is named after the Greek god of love, Erōs. It is pronounced or sometimes . The ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1221 Amor
1221 Amor is an asteroid and near-Earth object on an eccentric orbit, approximately in diameter. It is the namesake of the Amor asteroids, the second-largest subgroup of near-Earth objects. It was discovered by Eugène Delporte at the Uccle Observatory in 1932, the first time that an asteroid was seen to approach Earth so closely. The assumed S-type asteroid is one of few low-numbered asteroids for which no rotation period has been determined. It was assigned the provisional designation ' and named for Cupid, also known as "Amor" in Latin, the Roman equivalent of the Greek god Eros. Discovery On 12 March 1932, Belgian astronomer Eugène Delporte photographed ''Amor'' at the Royal Observatory of Belgium in Uccle, as it approached Earth to within 16 million kilometers (about 40 times the distance from Earth to the Moon). This was the first time that an asteroid was seen to approach Earth so closely. The body's observation arc begins with its official discovery observation on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1036 Ganymed
1036 Ganymed, provisional designation ', is a stony asteroid on a highly eccentric orbit, classified as a near-Earth object of the Amor group. It was discovered by German astronomer Walter Baade at the Bergedorf Observatory in Hamburg on 23 October 1924, and named after Ganymede from Greek mythology. With a diameter of approximately , ''Ganymed'' is the largest of all near-Earth objects but does not cross Earth's orbit. The S-type asteroid has a rotation period of 10.3 hours. In October 2024, it is predicted to approach Earth at a distance of . Orbit and classification ''Ganymed'' is an Amor asteroid, a subgroup of the near-Earth asteroids that approach the orbit of Earth from beyond, but do not cross it. It orbits the Sun at a distance of 1.2–4.1 AU about once every 4 years and 4 months (i.e., 52 months, or 1,587 days exactly; semi-major axis of 2.66 AU). Its orbit has a high eccentricity of 0.53 and an inclination of 27 ° with respect to the ecliptic. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
164215 Doloreshill
Year 164 ( CLXIV) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Macrinus and Celsus (or, less frequently, year 917 '' Ab urbe condita''). The denomination 164 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Marcus Aurelius gives his daughter Lucilla in marriage to his co-emperor Lucius Verus. * Avidius Cassius, one of Lucius Verus' generals, crosses the Euphrates and invades Parthia. * Ctesiphon is captured by the Romans, but returns to the Parthians after the end of the war. * The Antonine Wall in Scotland is abandoned by the Romans. * Seleucia on the Tigris is destroyed. Births * Bruttia Crispina, Roman empress (d. 191) * Ge Xuan (or Xiaoxian), Chinese Taoist (d. 244) * Yu Fan, Chinese scholar and official (d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3671 Dionysus
3671 Dionysus is a small binary Amor asteroid, orbiting between Earth and the asteroid belt. It was discovered by Carolyn and Gene Shoemaker at Palomar Observatory on 27 May 1984. It is named after Dionysus, the Greek god of wine. Its provisional designation was 1984 KD. It is an outer Earth grazer because its perihelion is just within Earth's orbit. Potentially hazardous object 3671 Dionysus is a potentially hazardous asteroid (PHA) because its minimum orbit intersection distance (MOID) is less than 0.05 AU and its diameter is greater than 150 meters. The Earth-MOID is . Its orbit is well-determined for the next several hundred years. Dionysus makes modestly close approaches to Earth. On 19 June 1984 Dionysus passed from Earth. On 18 June 2085 it will pass from Earth. Moon In 1997, a team of astronomers at the European Southern Observatory announced that lightcurve observations indicate the presence of a small moon orbiting Dionysus. Its provisional designation is S/ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1992 JD
Year 199 ( CXCIX) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was sometimes known as year 952 '' Ab urbe condita''. The denomination 199 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Mesopotamia is partitioned into two Roman provinces divided by the Euphrates, Mesopotamia and Osroene. * Emperor Septimius Severus lays siege to the city-state Hatra in Central-Mesopotamia, but fails to capture the city despite breaching the walls. * Two new legions, I Parthica and III Parthica, are formed as a permanent garrison. China * Battle of Yijing: Chinese warlord Yuan Shao defeats Gongsun Zan. Korea * Geodeung succeeds Suro of Geumgwan Gaya, as king of the Korean kingdom of Gaya (traditional date). By topic Religion * Pope Zephyrinus succeeds Pope Victor I, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
15817 Lucianotesi
15817 Lucianotesi (or 1994 QC) is an Amor asteroid discovered on August 28, 1994, by A. Boattini and M. Tombelli Maura Tombelli (born 1952 in Montelupo Fiorentino) is an Italian amateur astronomer who began her training in astronomy as an observer of variable stars. She is a prolific discoverer of almost 200 minor planets, including the main-belt asteroid ... at San Marcello Pistoiese. References External links * * * 015817 Discoveries by Maura Tombelli Discoveries by Andrea Boattini Named minor planets 19940828 {{NE-asteroid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
3552 Don Quixote
3552 Don Quixote, provisionally designated , is an exceptionally eccentric asteroid, classified as a near-Earth object of the Amor group, Mars-crosser and Jupiter-crosser, as well as a centaur and extinct comet. Discovery and naming The asteroid was discovered on 26 September 1983, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland. It was named after the comic knight who is the eponymous hero of Cervantes Spanish novel ''Don Quixote'' (1605). The approved naming citation was published by the Minor Planet Center on 2 December 1990 (). Orbit and characteristics ''Don Quixote'' is characterized as a dark D-type asteroid in the Tholen and SMASS taxonomy. It has a highly inclined comet-like orbit of 31 degrees that leads to frequent perturbations by Jupiter. Don Quixote measures 18.4 kilometres in diameter and has a rotation period of 7.7 hours. Due to its comet-like orbit and albedo, Don Quixote has been suspected to be an extinct comet. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2009 AT
9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra and Gupta started curving the bottom vertical line coming up with a -look-alike. The Nagari continued the bottom stroke to make a circle and enclose the 3-look-alike, in much the same way that the sign @ encircles a lowercase ''a''. As time went on, the enclosing circle became bigger and its line continued beyond the circle downwards, as the 3-look-alike became smaller. Soon, all that was left of the 3-look-alike was a squiggle. The Arabs simply connected that squiggle to the downward stroke at the middle and subsequent European change was purely cosmetic. While the shape of the glyph for the digit 9 has an ascender in most modern typefaces, in typefaces with text figures the character usually has a descender, as, for example, in . The mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2008 CO
8 (eight) is the natural number following 7 and preceding 9. In mathematics 8 is: * a composite number, its proper divisors being , , and . It is twice 4 or four times 2. * a power of two, being 2 (two cubed), and is the first number of the form , being an integer greater than 1. * the first number which is neither prime nor semiprime. * the base of the octal number system, which is mostly used with computers. In octal, one digit represents three bits. In modern computers, a byte is a grouping of eight bits, also called an octet. * a Fibonacci number, being plus . The next Fibonacci number is . 8 is the only positive Fibonacci number, aside from 1, that is a perfect cube. * the only nonzero perfect power that is one less than another perfect power, by Mihăilescu's Theorem. * the order of the smallest non-abelian group all of whose subgroups are normal. * the dimension of the octonions and is the highest possible dimension of a normed division algebra. * the first number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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