NationMaster - Encyclopedia: 283 Emma

283 Emma is a very large main belt asteroid. Auguste Honoré Charlois (November 26, 1864 – March 26, 1910) was a French astronomer who discovered 99 asteroids while working in Nice. ... February 8 is the 39th day of the year in the Gregorian Calendar. ... 1889 was a common year starting on Tuesday (see link for calendar). ... 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 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). ... Image of the main asteroid belt between the orbits of Mars and Jupiter. ... Eos family is a prominent family of asteroids that are believed to have formed as a result from an ancient catastrophic collision between asteroids. ... 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 is a common year starting on Saturday of the Gregorian calendar and is the current year. ... The Julian day or Julian day number (JDN) is the number of SI days that have elapsed since 12 noon Greenwich Mean Time (UT or TT) on Monday, January 1, 4713 BC in the proleptic Julian calendar 1. ... (This page refers to eccitricity in astrodynamics. ... In geometry, the semi-major axis (also semimajor axis) a applies to ellipses and hyperbolas. ... Giga (symbol: G) is a prefix in the SI system of units denoting 109, or 1 000 000 000. ... The metre is the basic unit of length in the International System of Units (SI: SystÃ¨me International dUnitÃ©s). ... 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 day is any of several different units of time. ... A Julian year is the length of an average year in the Julian calendar, 365. ... 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. ... The second (symbol s) is a unit for time, and one of seven SI base units. ... 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 (or in full a degree of arc), usually symbolized Â°, 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. ... Density (symbol: Ï - Greek: rho) is a measure of mass per unit of volume. ... It has been suggested that Law of universal gravitation 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. ... An asteroid is a small, solid object in our Solar System, orbiting the Sun. ... 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. ... Image of the main asteroid belt between the orbits of Mars and Jupiter. ... An asteroid is a small, solid object in our Solar System, orbiting the Sun. ...

It was discovered by Auguste Charlois on February 8, 1889 in Nice. Auguste Honoré Charlois (November 26, 1864 – March 26, 1910) was a French astronomer who discovered 99 asteroids while working in Nice. ... February 8 is the 39th day of the year in the Gregorian Calendar. ... 1889 was a common year starting on Tuesday (see link for calendar). ... NICE can refer to: The British National Institute for Clinical Excellence The Iraqi National Independent Cadres and Elites NICE Systems, designing call monitoring systems The fictional National Institute for Coordinated Experiments which appears in C.S. Lewis novel That Hideous Strength. ...

A companion for Emma was detected on 14 July 2003 by J. W. Merline et al. using the Keck II telescope. It is 12 km in diameter and is designated S/2003 (283) 1. It probably orbits at a distance of 370 km from the primary. When the orbit is known well enough, the satellite will receive a permanent number and name. July 14 is the 195th day (196th in leap years) of the year in the Gregorian Calendar, with 170 days remaining. ... 2003 is a common year starting on Wednesday of the Gregorian calendar. ... The Mauna Kea Observatory, an institute of the University of Hawaii, is considered one of the most important land-based observatories in the world for its isolated, unobstructed views of space without interference from man-made light sources. ...

Categories: Asteroid stubs | Binary asteroids | Eos asteroids Minor planets, or planetoids are minor bodies of the solar system orbiting the sun 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). ... Vulcanoids are hypothetical asteroids that may orbit in a dynamically stable zone between 0. ... 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. ... Near-Earth objects (NEO) are asteroids, comets and large meteoroids whose orbit intersects Earths orbit and which may therefore pose a collision danger. ... Image of the Trojan asteroids in front of and behind Jupiter along its orbital path. ... The centaurs are a class of icy planetoids that orbit the Sun between Jupiter and Neptune, named after the mythical race of centaurs. ... A trans-Neptunian object (TNO) is any object in the solar system with all or most of its orbit beyond that of Neptune. ... Damocloids are asteroids such as 5335 Damocles and (16746) 1996 PW that have long-period highly eccentric orbits typical of periodic comets such as 1P/Halley, but without showing a cometary coma or tail. ... Comet Hale-Bopp, showing a white dust tail and blue gas tail (February 1997) A comet is a small body in the solar system that orbits the sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail -- both due primarily to the effects of solar radiation... Artists rendering of the Kuiper Belt and more distant Oort cloud. ... This image is an artists rendering of the Oort cloud and the Kuiper Belt. ... An asteroid moon is an asteroid that orbits another asteroid. ... Presentation of the Solar system (not to scale). ... This is a list of numbered asteroids, in sequential order. ... This page alphabetically lists the first thousand asteroids to be numbered, which are mostly in the main belt. ...