celestial sphere


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celestial sphere

celestial sphere

n.
An imaginary sphere of infinite extent with the earth at its center and on which the stars, planets, and other heavenly bodies appear to be located.

celestial sphere

n
(Astronomy) an imaginary sphere of infinitely large radius enclosing the universe so that all celestial bodies appear to be projected onto its surface

celes′tial sphere′


n.
the imaginary, infinite sphere formed by the sky, the center of which is a given observer's position.
[1875–80]
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celestial sphere

celestial sphere

An imaginary sphere with Earth at its center. The stars, planets, sun, moon, and other heavenly bodies appear to be located on this sphere.

celestial sphere

An imaginary sphere of infinite radius concentric with the Earth, on which all celestial bodies except the Earth are imagined to be projected.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.celestial sphere - the apparent surface of the imaginary sphere on which celestial bodies appear to be projectedcelestial sphere - the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
apex of the sun's way, solar apex, apex - the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars
celestial point - a point in the heavens (on the celestial sphere)
nadir - the point below the observer that is directly opposite the zenith on the imaginary sphere against which celestial bodies appear to be projected
surface - the extended two-dimensional outer boundary of a three-dimensional object; "they skimmed over the surface of the water"; "a brush small enough to clean every dental surface"; "the sun has no distinct surface"
zenith - the point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projected
zodiac - a belt-shaped region in the heavens on either side to the ecliptic; divided into 12 constellations or signs for astrological purposes
Translations
References in classic literature ?
The whole extent of the celestial sphere swarmed with stars and constellations of wonderful purity, enough to drive an astronomer out of his mind
The sun will go through the winter solstice, where it will be at its lowest point on the celestial sphere," explained University of Bahrain physics department assistant professor Dr Mohammed Al Othman.
It is doubtful that the prominently displayed Jacob's staff, astrolabe, and European celestial sphere impressed Chinese astronomers.
They discuss what real-time data are; technology tips and tricks; conducting investigations with real-time data; data types, representation, and analysis; investigations using real-time atmospheric data, biosphere data, geosphere data, hydrosphere data, and celestial sphere data; beyond the data; and real-time citizen science.
One way the ancients thought of the night sky was as a celestial sphere.
Celestial sphere "The Oman Astronomical Society is gearing up, with PDO, to bring the wonders of the celestial sphere closer to people's homes," Al Shithani said.
Inspired by the celestial sphere, the Bell & Ross watch -- BR S Diamond Eagle -- available at Khimji's Watches in Oman evokes a journey to the stars, a press release said.
A new mission, referred to as K2, was created for the telescope, providing it the capacity to observe a series of independent target fields in the ecliptic plane, which is the apparent path of the sun's motion on the celestial sphere when seen from Earth.
constellation A grouping of stars, usually with pictorial or mythical associations, that serves to identify an area of the celestial sphere.
This event marks the start of the apparent southward movement of the sun in the ecliptic," or the apparent path of the sun on the celestial sphere, it added.
The trick is that all the stars, nebulae, and galaxies can be pictured as if they were spots on the inside of a celestial sphere with Earth in the middle.
Wandering across the celestial sphere, the vagrant will pass close to Mars, Uranus, the thin crescent Moon and the Andromeda galaxy.