33 relations: Absolute magnitude, Albedo, Asteroid, Asteroid belt, Asteroid family, Astronomical unit, Brian A. Skiff, C-type asteroid, Degree (angle), Ecliptic, International Near-Earth Asteroid Survey, James M. Creighton, Jet Propulsion Laboratory, Julian day, Julian year (astronomy), Kirkwood gap, Light curve, Magnitude (astronomy), Minor planet, Minor Planet Center, Observation arc, Old Main (Arizona State University), Orbital eccentricity, Orbital inclination, Palomar Observatory, Palomar Transient Factory, Pikes Peak, Precovery, Rotation period, Semi-major and semi-minor axes, Sloan Digital Sky Survey, Wide-field Infrared Survey Explorer, X-type asteroid.
Absolute magnitude is a measure of the luminosity of a celestial object, on a logarithmic astronomical magnitude scale.
Albedo (albedo, meaning "whiteness") is the measure of the diffuse reflection of solar radiation out of the total solar radiation received by an astronomical body (e.g. a planet like Earth).
Asteroids are minor planets, especially those of the inner Solar System.
The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter.
An asteroid family is a population of asteroids that share similar proper orbital elements, such as semimajor axis, eccentricity, and orbital inclination.
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
Brian A. Skiff is an American astronomer noted for discovering numerous asteroids and a number of comets including the periodic comets 114P/Wiseman–Skiff (with Jennifer Wiseman) and 140P/Bowell–Skiff (with Edward Bowell).
C-type (carbonaceous) asteroids are the most common variety, forming around 75% of known asteroids.
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.
The ecliptic is the circular path on the celestial sphere that the Sun follows over the course of a year; it is the basis of the ecliptic coordinate system.
The International Near-Earth Asteroid Survey (INAS) was an astronomical survey, organized and co-ordinated by prolific American astronomer Eleanor Helin during the 1980s.
James Miller Creighton (September 14, 1856 – November 25, 1946) was an American architect who practiced in Phoenix, Arizona from the 1880s to the 1920s.
The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in Pasadena, California, United States, with large portions of the campus in La Cañada Flintridge, California.
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.
A Kirkwood gap is a gap or dip in the distribution of the semi-major axes (or equivalently of the orbital periods) of the orbits of main-belt asteroids.
In astronomy, a light curve is a graph of light intensity of a celestial object or region, as a function of time.
In astronomy, magnitude is a logarithmic measure of the brightness of an object in a defined passband, often in the visible or infrared spectrum, but sometimes across all wavelengths.
A minor planet is an astronomical object in direct orbit around the Sun (or more broadly, any star with a planetary system) that is neither a planet nor exclusively classified as a comet.
The Minor Planet Center (MPC) is the official worldwide organization in charge of collecting observational data for minor planets (such as asteroids and comets), calculating their orbits and publishing this information via the Minor Planet Circulars.
In observational astronomy, an observation arc (or arc length) is the time period between the first and most recent (last) observation, tracing the body's path.
Old Main is the second building on the campus of Arizona State University, in Tempe, Arizona.
The orbital eccentricity of an astronomical object is a parameter that determines the amount by which its orbit around another body deviates from a perfect circle.
Orbital inclination measures the tilt of an object's orbit around a celestial body.
Palomar Observatory is an astronomical observatory located in San Diego County, California, United States, southeast of Los Angeles, California, in the Palomar Mountain Range.
The Palomar Transient Factory (PTF, obs. code: I41), was an astronomical survey using a wide-field survey camera designed to search for optical transient and variable sources such as variable stars, supernovae, asteroids and comets.
Pikes Peak is the highest summit of the southern Front Range of the Rocky Mountains, in North America.
In astronomy, precovery (short for pre-discovery recovery) is the process of finding the image of an object in old archived images or photographic plates for the purpose of calculating a more accurate orbit.
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 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 Sloan Digital Sky Survey or SDSS is a major multi-spectral imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point Observatory in New Mexico, United States.
Wide-field Infrared Survey Explorer (WISE) is a NASA infrared-wavelength astronomical space telescope launched in December 2009, and placed in hibernation in February 2011.
The X-group of asteroids collects together several types with similar spectra, but probably quite different compositions.