57 relations: Adaptive optics, Apparent magnitude, Asteroid, Asteroid belt, Astronomical unit, Axial tilt, Binoculars, Ceres (dwarf planet), Chondrite, Dwarf planet, Ecliptic, Ecliptic coordinate system, Elongation (astronomy), Heliocentrism, Hera, Impact crater, Infrared, Johann Hieronymus Schröter, Julian day, Julian year (astronomy), Juno (mythology), Juno clump, Karl Ludwig Harding, Kelvin, List of exceptional asteroids, Mars, Meteorite, Minor planet, Minor Planet Center, Minor planet designation, Mount Wilson Observatory, Occultation, Olivine, Opposition (planets), Orbit, Orbital eccentricity, Perihelion and aphelion, Planet, Planetary Data System, Pluto, Pyroxene, Retrograde and prograde motion, S-type asteroid, Silicate, Star, Sun, Telescope, Titan (moon), 10 Hygiea, 15 Eunomia, ..., 2 Pallas, 324 Bamberga, 33 Polyhymnia, 4 Vesta, 511 Davida, 52 Europa, 704 Interamnia. Expand index (7 more) » « Shrink index
Adaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effect of incoming wavefront distortions by deforming a mirror in order to compensate for the distortion.
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on 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.
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
In astronomy, axial tilt, also known as obliquity, is the angle between an object's rotational axis and its orbital axis, or, equivalently, the angle between its equatorial plane and orbital plane.
Binoculars or field glasses are two telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects.
Ceres (minor-planet designation: 1 Ceres) is the largest object in the asteroid belt that lies between the orbits of Mars and Jupiter, slightly closer to Mars' orbit.
Chondrites are stony (non-metallic) meteorites that have not been modified due to melting or differentiation of the parent body.
A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite.
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 ecliptic coordinate system is a celestial coordinate system commonly used for representing the apparent positions and orbits of Solar System objects.
In astronomy, a planet's elongation is the angular separation between the Sun and the planet, with Earth as the reference point.
Heliocentrism is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Solar System.
Hera (Ἥρᾱ, Hērā; Ἥρη, Hērē in Ionic and Homeric Greek) is the goddess of women, marriage, family, and childbirth in Ancient Greek religion and myth, one of the Twelve Olympians and the sister-wife of Zeus.
An impact crater is an approximately circular depression in the surface of a planet, moon, or other solid body in the Solar System or elsewhere, formed by the hypervelocity impact of a smaller body.
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
Johann Hieronymus Schröter (30 August 1745, Erfurt – 29 August 1816, Lilienthal) was a German astronomer.
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.
Juno (Latin: IVNO, Iūnō) is an ancient Roman goddess, the protector and special counselor of the state.
The Juno clump is a probable main-belt asteroid family in the vicinity of 3 Juno.
Karl Ludwig Harding (September 29, 1765 – August 31, 1834) was a German astronomer, who discovered 3 Juno, the third asteroid of the main-belt in 1804.
The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.
The following is a collection of lists of exceptional asteroids in the Solar System.
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System after Mercury.
A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the atmosphere to reach the surface of a planet or moon.
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.
A formal minor planet designation is, in its final form, a number–name combination given to a minor planet (asteroid, centaur, trans-Neptunian object and dwarf planet but not comet).
The Mount Wilson Observatory (MWO) is an astronomical observatory in Los Angeles County, California, United States.
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer.
The mineral olivine is a magnesium iron silicate with the formula (Mg2+, Fe2+)2SiO4.
In positional astronomy, two astronomical objects are said to be in opposition when they are on opposite sides of the celestial sphere, as observed from a given body (usually Earth).
In physics, an orbit is the gravitationally curved trajectory of an object, such as the trajectory of a planet around a star or a natural satellite around a planet.
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.
The perihelion of any orbit of a celestial body about the Sun is the point where the body comes nearest to the Sun.
A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.
The Planetary Data System (PDS) is a distributed data system that NASA uses to archive data collected by Solar System missions.
Pluto (minor planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune.
The pyroxenes (commonly abbreviated to Px) are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks.
Retrograde motion in astronomy is, in general, orbital or rotational motion of an object in the direction opposite the rotation of its primary, that is the central object (right figure).
S-type asteroids are asteroids with a spectral type that is indicative of a silicaceous (i.e. stony) mineralogical composition, hence the name.
In chemistry, a silicate is any member of a family of anions consisting of silicon and oxygen, usually with the general formula, where 0 ≤ x Silicate anions are often large polymeric molecules with an extense variety of structures, including chains and rings (as in polymeric metasilicate), double chains (as in, and sheets (as in. In geology and astronomy, the term silicate is used to mean silicate minerals, ionic solids with silicate anions; as well as rock types that consist predominantly of such minerals. In that context, the term also includes the non-ionic compound silicon dioxide (silica, quartz), which would correspond to x.
A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.
The Sun is the star at the center of the Solar System.
A telescope is an optical instrument that aids in the observation of remote objects by collecting electromagnetic radiation (such as visible light).
Titan is the largest moon of Saturn.
10 Hygiea is the fourth-largest asteroid in the Solar System by volume and mass, and it is located in the asteroid belt.
15 Eunomia is a very large asteroid in the inner asteroid belt.
Pallas, minor-planet designation 2 Pallas, is the second asteroid to have been discovered (after Ceres), and is one of the largest asteroids in the Solar System.
324 Bamberga is one of the largest asteroids in the asteroid belt.
33 Polyhymnia is a main belt asteroid that was discovered by French astronomer Jean Chacornac on October 28, 1854 and named after Polyhymnia, the Greek Muse of sacred hymns.
Vesta, minor-planet designation 4 Vesta, is one of the largest objects in the asteroid belt, with a mean diameter of.
511 Davida is a large C-type asteroid in the asteroid belt.
52 Europa is the 6th-largest asteroid in the asteroid belt, having an average diameter of around 315 km.
704 Interamnia is a very large asteroid, with an estimated diameter of 350 kilometres.