35 relations: Angular diameter, Apollo, Apollo asteroid, Arecibo Observatory, Asteroid, Asteroid spectral types, Astronomy & Astrophysics, Degree (angle), Heidelberg-Königstuhl State Observatory, International Astronomical Union, Jet Propulsion Laboratory, Julian day, Julian year (astronomy), Karl Wilhelm Reinmuth, Kilometre, Light curve, List of Earth-crossing minor planets, List of Mars-crossing minor planets, List of minor planet discoverers, List of Venus-crossing minor planets, Lost minor planet, Minimum orbit intersection distance, Minor-planet moon, Near-Earth object, Orbital eccentricity, Potentially hazardous object, Provisional designation in astronomy, Puerto Rico, Q-type asteroid, Springer Science+Business Media, University of Arizona Press, Yarkovsky–O'Keefe–Radzievskii–Paddack effect, 1566 Icarus, 5731 Zeus, 68 Leto.
The angular diameter, angular size, apparent diameter, or apparent size is an angular measurement describing how large a sphere or circle appears from a given point of view.
Apollo (Attic, Ionic, and Homeric Greek: Ἀπόλλων, Apollōn (Ἀπόλλωνος); Doric: Ἀπέλλων, Apellōn; Arcadocypriot: Ἀπείλων, Apeilōn; Aeolic: Ἄπλουν, Aploun; Apollō) is one of the most important and complex of the Olympian deities in classical Greek and Roman religion and Greek and Roman mythology.
The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, discovered by German astronomer Karl Reinmuth in the 1930s.
The Arecibo Observatory is a radio telescope in the municipality of Arecibo, Puerto Rico.
Asteroids are minor planets, especially those of the inner Solar System.
An asteroid spectral type is assigned to asteroids based on their emission spectrum, color, and sometimes albedo (reflectivity).
Astronomy & Astrophysics is a peer-reviewed scientific journal covering theoretical, observational, and instrumental astronomy and astrophysics.
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.
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.
The International Astronomical Union (IAU; Union astronomique internationale, UAI) is an international association of professional astronomers, at the PhD level and beyond, active in professional research and education in astronomy.
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.
The kilometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: km; or) or kilometer (American spelling) is a unit of length in the metric system, equal to one thousand metres (kilo- being the SI prefix for). It is now the measurement unit used officially for expressing distances between geographical places on land in most of the world; notable exceptions are the United States and the road network of the United Kingdom where the statute mile is the official unit used.
In astronomy, a light curve is a graph of light intensity of a celestial object or region, as a function of time.
An Earth-crosser is a near-Earth asteroid whose orbit crosses that of Earth as observed from the ecliptic pole of Earth's orbit.
A Mars-crossing asteroid (MCA, also Mars-crosser, MC) is an asteroid whose orbit crosses that of Mars.
This is a list of all astronomers who are credited by the Minor Planet Center (MPC) with the discovery of one or several minor planets.
A Venus-crosser is an asteroid whose orbit crosses that of Venus.
Lost minor planets are minor planets that observers lose track of due to too short an observation arc to accurately predict the future location of the minor planet.
Minimum orbit intersection distance (MOID) is a measure used in astronomy to assess potential close approaches and collision risks between astronomical objects.
A minor-planet moon is an astronomical object that orbits a minor planet as its natural satellite.
A near-Earth object (NEO) is any small Solar System body whose orbit can bring it into proximity with Earth.
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.
A potentially hazardous object (PHO) is a near-Earth object – either an asteroid or a comet – with an orbit that can make exceptionally close approaches to the Earth and large enough to cause significant regional damage in the event of impact.
Provisional designation in astronomy is the naming convention applied to astronomical objects immediately following their discovery.
Puerto Rico (Spanish for "Rich Port"), officially the Commonwealth of Puerto Rico (Estado Libre Asociado de Puerto Rico, "Free Associated State of Puerto Rico") and briefly called Porto Rico, is an unincorporated territory of the United States located in the northeast Caribbean Sea.
Q-type asteroids are relatively uncommon inner-belt asteroids with a strong, broad 1 micrometre olivine and pyroxene feature, and a spectral slope that indicates the presence of metal.
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.
The University of Arizona Press, a publishing house founded in 1959 as a department of the University of Arizona, is a nonprofit publisher of scholarly and regional books.
The Yarkovsky–O'Keefe–Radzievskii–Paddack effect, or YORP effect for short, changes the rotation state of a small astronomical body – that is, the body's spin rate and the obliquity of its pole(s) – due to the scattering of solar radiation off its surface and the emission of its own thermal radiation.
1566 Icarus, provisional designation, is an extremely eccentric asteroid, approximately 1.4 kilometers in diameter.
5731 Zeus (1988 VP4) is an Apollo asteroid and near-Earth object discovered on November 4, 1988, by Carolyn Shoemaker at Palomar Observatory.
68 Leto (Greek: Λητώ) is a large main belt asteroid.