This article is about naturally occurring objects. For astronomical objects of the Solar System, see List of Solar System objects. For artificial objects, see Satellite."Celestial object" and "Celestial body" redirect here. For the subtle body postulated in philosophy, see Body of light. For other uses, see Celestial.
Selection of astronomical bodies and objects
An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists within the observable universe.[1] In astronomy, the terms object and body are often used interchangeably. However, an astronomical body or celestial body is a single, tightly bound, contiguous entity, while an astronomical or celestial object is a complex, less cohesively bound structure, which may consist of multiple bodies or even other objects with substructures.
Examples of astronomical objects include planetary systems, star clusters, nebulae, and galaxies, while asteroids, moons, planets, and stars are astronomical bodies. A comet may be identified as both a body and an object: It is a body when referring to the frozen nucleus of ice and dust, and an object when describing the entire comet with its diffuse coma and tail.
^Task Group on Astronomical Designations from IAU Commission 5 (April 2008). "Naming Astronomical Objects". International Astronomical Union (IAU). Archived from the original on 2 August 2010. Retrieved 4 July 2010.{{cite web}}: CS1 maint: numeric names: authors list (link)
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An astronomicalobject, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists...
type of astronomicalobject. List of Solar System objects List of gravitationally rounded objects of the Solar System List of Solar System objects most distant...
This article documents the most distant astronomicalobjects discovered and verified so far, and the time periods in which they were so classified. For...
Various unknown astronomicalobjects have been hypothesized throughout recorded history. For example, in the 5th century BCE, the philosopher Philolaus...
astronomicalobject is a meteorological optical phenomenon, in which light rays are bent to produce distorted or multiple images of an astronomical object...
The Messier objects are a set of 110 astronomicalobjects catalogued by the French astronomer Charles Messier in his Catalogue des Nébuleuses et des Amas...
Observational astronomy is focused on acquiring data from observations of astronomicalobjects. This data is then analyzed using basic principles of physics. Theoretical...
An interstellar object is an astronomicalobject (such as an asteroid, a comet, or a rogue planet, but not a star or stellar remnant) in interstellar space...
dictionary. An extrasolar object (from Latin extra 'outside or beyond', and solaris 'of the Sun') is an astronomicalobject that exists outside the Solar...
names. Over the last few hundred years, the number of identified astronomicalobjects has risen from hundreds to over a billion, and more are discovered...
Though the terms astronomical "body" and astronomical "object" are often used interchangeably, there are technical distinctions. astronomical catalogue A list...
produce distorted or multiple images of an astronomicalobject. Mirages can be observed for such astronomicalobjects as the Sun, the Moon, the planets, bright...
Planetary body or planetary object, any secondary body in the Solar system that has a planet-like geology Astronomicalobject In object relations theory of psychoanalysis...
(abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies...
Tides Zodiac Astronomicalobject Solar System Geology of solar terrestrial planets List of Solar System objects List of Solar System objects by size Galilean...
is a region of space surrounding an astronomicalobject in which charged particles are affected by that object's magnetic field. It is created by a celestial...
This is a list of astronomicalobjects named after people. While topological features on Solar System bodies — such as craters, mountains, and valleys...
Astronomical nutation is a phenomenon which causes the orientation of the axis of rotation of a spinning astronomicalobject to vary over time. It is caused...
other astronomicalobject. An object's apparent magnitude depends on its intrinsic luminosity, its distance, and any extinction of the object's light...
large distances to astronomicalobjects outside the Solar System, approximately equal to 3.26 light-years or 206,265 astronomical units (AU), i.e. 30...
Chinese astronomers in 1054 as a guest star. The nebula was the first astronomicalobject identified that corresponds with a historically-observed supernova...
the distances to celestial objects. A direct distance measurement of an astronomicalobject is possible only for those objects that are "close enough" (within...
eye. In usual conditions, a green rim of an astronomicalobject gets fainter when an astronomicalobject is very low above the horizon because of atmospheric...
An astronomical catalog or catalogue is a list or tabulation of astronomicalobjects, typically grouped together because they share a common type, morphology...
In astronomy, seeing is the degradation of the image of an astronomicalobject due to turbulence in the atmosphere of Earth that may become visible as...
Astronomical instruments include: Alidade – Device that allows one to sight a distant object Armillary sphere – Model of objects in the sky consisting...
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