34 relations: Absolute magnitude, Albedo, Asteroid, Asteroid belt, Asteroid family, Asteroid spectral types, Astronomical unit, Binary asteroid, Degree (angle), Ecliptic, Edvard Grieg, Flora family, Heidelberg-Königstuhl State Observatory, Henrik Ibsen, Hour, Ingrid van Houten-Groeneveld, Jet Propulsion Laboratory, Julian day, Julian year (astronomy), Karl Wilhelm Reinmuth, Kirkwood gap, Light curve, Lutz D. Schmadel, Magnitude (astronomy), Minor planet, Minor-planet moon, Observation arc, Orbital eccentricity, Orbital inclination, Peer Gynt, Rotation period, S-type asteroid, Springer Science+Business Media, Wide-field Infrared Survey Explorer.
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.
An asteroid spectral type is assigned to asteroids based on their emission spectrum, color, and sometimes albedo (reflectivity).
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
A binary asteroid is a system of two asteroids orbiting their common barycenter.
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.
Edvard Hagerup Grieg (15 June 18434 September 1907) was a Norwegian composer and pianist.
The Flora or Florian '''family''' of asteroids is a large grouping of S-type asteroids in the inner main belt, whose origin and properties are relatively poorly understood at present.
Heidelberg-Königstuhl State Observatory (Landessternwarte Heidelberg-Königstuhl) is a historic astronomical observatory located near the summit of the Königstuhl hill in the city of Heidelberg in Germany.
Henrik Johan Ibsen (20 March 1828 – 23 May 1906) was a Norwegian playwright, theatre director, and poet.
An hour (symbol: h; also abbreviated hr.) is a unit of time conventionally reckoned as of a day and scientifically reckoned as 3,599–3,601 seconds, depending on conditions.
Ingrid van Houten-Groeneveld (21 October 1921 – 30 March 2015) was a Dutch astronomer.
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.
Karl Wilhelm Reinmuth (April 4, 1892 in Heidelberg – May 6, 1979 in Heidelberg) was a German astronomer and a prolific discoverer of 395 minor planets.
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.
Lutz D. Schmadel (July 2, 1942 in Berlin – October 21, 2016) was a German astronomer and a prolific discoverer of asteroids, who worked at the Astronomisches Rechen-Institut (ARI) of the University of Heidelberg.
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.
A minor-planet moon is an astronomical object that orbits a minor planet as its natural satellite.
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.
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.
Peer Gynt is a five-act play in verse by the Norwegian dramatist Henrik Ibsen published in 1867.
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.
S-type asteroids are asteroids with a spectral type that is indicative of a silicaceous (i.e. stony) mineralogical composition, hence the name.
Springer Science+Business Media or Springer, part of Springer Nature since 2015, is a global publishing company that publishes books, e-books and peer-reviewed journals in science, humanities, technical and medical (STM) publishing.
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.