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 periodicals archive ?
The ring appears to lie in Haumea's equatorial plane, which is shared by the larger, outer moon Hi'iaka.
An international team of researchers, led by scientists from the University of Geneva, Switzerland, found that unlike most planets, which orbit in the equatorial plane of their host stars, GJ436b has a polar orbit, which is to say, it orbits over the poles of its star, which is a red dwarf called GJ436.
Determining the axial tilt of planets or the angle between the planet's equatorial plane and orbital plane proves difficult to assess accurately, given the limitations of the observational points of view on Earth.
Chromosomes derived from the egg were arranged along the equatorial plane of the meiotic spindle.
The longitudinal protrusions are arranged in first and second rows extending from the first and second side walls toward and across the equatorial plane of the tire.
Scientists will tell you the 55th parallel north is a circle of latitude that is 55 degrees north of the Earth's equatorial plane.
equatorial plane, and dive into the space between Saturn and it's
The inclination of orbit with respect to the equatorial plane of Mars is 150 degree, as intended.
Relative to the celestial equator, it passes as far north as the constellation of Cassiopeia and as far south as the constellation of Crux, indicating the high inclination of Earth's equatorial plane and the plane of the ecliptic, relative to the Galactic plane.
The direction is aligned with the ecliptic plane (the plane of the orbit of the planets around the sun), and with the equinoxes (the equatorial plane of supposedly insignificant Earth).
This gas forms an accretion disc around the equatorial plane of the white dwarf.
At the equatorial plane of the electric dipole antenna, [theta] = [pi]/2 and