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Encyclopedia > 38083 Rhadamanthus
38083 Rhadamanthus
Discovery A
Discoverer Deep Ecliptic Survey
Discovery date April 17, 1999
Alternate
designations
38083 1999 HX11 B
Category Trans-Neptunian object
Orbital elements C D
Epoch January 30, 2005 (JD2453400.5)
Eccentricity (e) 0.1541
Semi-major axis (a) 39.2374 AU
Perihelion (q) 33.1918 AU
Aphelion (Q) 45.2831 AU
Orbital period (P) 245.7870 y
Mean orbital speed
Inclination (i) 12.7180 °
Longitude of the
ascending node
(Ω)
9.9984 °
Argument of
perihelion
(ω)
82.4610 °
Mean anomaly (M) 80.7071 °
Physical characteristics
Dimensions  ? km
Mass  ?×10? kg
Density  ? g/cm³
Surface gravity  ? m/s²
Escape velocity  ? km/s
Rotation period  ? d
Spectral class  ?
Absolute magnitude 6.70
Albedo
Mean surface
temperature
~? K

38083 Rhadamanthus (formerly known as (38083) 1999 HX11) is a trans-Neptunian object. It was discovered in 1999 by the Deep Ecliptic Survey. It is classified as a plutino, which means that it in a 3:2 orbital resonance with Neptune, similar to that of Pluto. The Deep Ecliptic Survey is a project to find Kuiper belt objects, using the facilities of the National Optical Astronomy Observatory. ... April 17 is the 107th day of the year in the Gregorian calendar (108th in leap years). ... 1999 (MCMXCIX) is a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... The provisional designation of comets and asteroids are similar to each other: they both follow a pattern set in 1925 by the Minor Planet Center of the IAU. Historical designations At first, astronomers strove to assign symbols to the minor planets: 1 Ceres a stylized sickle 2 Pallas a lozenge... 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... A trans-Neptunian object (TNO) is any object in the solar system which orbits the sun at a greater distance on average than Neptune. ... In astronomy, an epoch is a moment in time for which celestial coordinates or orbital elements are specified. ... January 30 is the 30th day of the year in the Gregorian Calendar. ... 2005 (MMV) is a common year starting on Saturday of the Gregorian calendar. ... The Julian day or Julian day number (JDN) is the number of days that have elapsed since 12 noon Greenwich Mean Time (UT or TT) on Monday, January 1, 4713 BC in the proleptic Julian calendar . ... In astrodynamics, under standard assumptions any orbit must be of conic section shape. ... In geometry, the semi-major axis (also semimajor axis) a applies to ellipses and hyperbolas. ... The astronomical unit (AU or au or a. ... This article is about several astronomical terms (apogee & perigee, aphelion & perihelion, generic equivalents based on apsis, and related but rarer terms. ... This article is about several astronomical terms (apogee & perigee, aphelion & perihelion, generic equivalents based on apsis, and related but rarer terms. ... The orbital period is the time it takes a planet (or another object) to make one full orbit. ... A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ... The orbital speed of a body, generally a planet, a natural satellite, an artificial satellite, or a multiple star, is the speed at which it orbits around the barycenter of a system, usually around a more massive body. ... Inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit and is the angular distance of the orbital plane from the plane of the reference (usually planets equator or the ecliptic), stated in degrees. ... A degree (in full, a degree of arc), usually symbolized °, is a measurement of plane angle, representing 1/360 of a full rotation. ... The Longitude of the ascending node () is one of the orbital elements used to specify the orbit of an object in space. ... The argument of the perihelion is one of the orbital elements describing the orbit of a planet. ... In the study of orbital dynamics the mean anomaly is a measure of time, specific to the orbiting body p, which is a multiple of 2π radians at and only at periapsis. ... Mass is a property of physical objects that, roughly speaking, measures the amount of matter they contain. ... The international prototype, made of platinum-iridium, which is kept at the BIPM under conditions specified by the 1st CGPM in 1889. ... Density (symbol: ρ - Greek: rho) is a measure of mass per unit of volume. ... A cubic centimetre (cm3) is an SI derived unit of volume, equal to the volume of a cube with side length of 1 centi metre. ... It has been suggested that Gravitational constant be merged into this article or section. ... In physics, for a given gravitational field and a given position, the escape velocity is the minimum speed an object without propulsion, at that position, needs to have to move away indefinitely from the source of the field, as opposed to falling back or staying in an orbit within a... In astronomy, a rotation period is the time an astronomical object takes to complete one revolution around its rotation axis. ... Asteroids are assigned a type based on spectral shape, color, and sometimes albedo. ... In astronomy, absolute magnitude is the apparent magnitude, m, an object would have if it were at a standardized distance away. ... The albedo is a measure of reflectivity of a surface or body. ... Temperature is the physical property of a system which underlies the common notions of hot and cold; the material with the higher temperature is said to be hotter. ... The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. ... A trans-Neptunian object (TNO) is any object in the solar system which orbits the sun at a greater distance on average than Neptune. ... 1999 (MCMXCIX) is a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... The Deep Ecliptic Survey is a project to find Kuiper belt objects, using the facilities of the National Optical Astronomy Observatory. ... In astronomy, a plutino is a Pluto-like object, insofar as it has the same relative orbit as Pluto. ... In celestial mechanics, orbital resonance occurs when two orbiting bodies have periods of revolution that are in a simple integer ratio so that they exert a regular gravitational influence on each other. ... Adjective Neptunian Atmospheric characteristics Surface pressure ≫100 MPa Hydrogen - H2 80% ±3. ... Atmospheric characteristics Atmospheric pressure 0. ...


It is named after the Greek mythological figure Rhadamanthus. Greek mythology comprises the collected narratives of Greek gods, goddesses, heroes, and heroines, originally created and spread within an oral-poetic tradition. ... Rhadamanthus (also transliterated as Rhadamanthys or Rhadamanthos) in Greek mythology was a son of Zeus and Europa and brother of Minos, king of Crete and Sarpedon. ...



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The minor planetsedit
Vulcanoids | Main belt | Groups and families | Near-Earth objects | Jupiter Trojans
Centaurs | Damocloids | Comets | Trans-Neptunians (Kuiper belt | Scattered disc | Oort cloud)
For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system
For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.

  Results from FactBites:
 
Rhadamanthus - Wikipedia, the free encyclopedia (199 words)
Rhadamanthus (also transliterated as Rhadamanthys or Rhadamanthos) in Greek mythology was a son of Zeus and Europa and brother of Minos, king of Crete and Sarpedon.
According to one account Rhadamanthus ruled Crete before Minos, and gave the island an excellent code of laws, which the Spartans were believed to have copied.
The Trans-Neptunian_Object 38083 Rhadamanthus is named after this figure.
Rhadamanthus: Definition and Much More From Answers.com (294 words)
A son of Zeus and Europa who, in reward for his exemplary sense of justice, was made a judge of the underworld after his death.
Rhadamanthus (răd'əmăn'thəs), in Greek mythology, son of Zeus and Europa.
Renowned for his justice on earth, the gods made him one of the judges of the dead.
  More results at FactBites »

 
 

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