What does celestial sphere mean?

Definitions for celestial sphere
ce·les·tial spher·e

This dictionary definitions page includes all the possible meanings, example usage and translations of the word celestial sphere.

Princeton's WordNet

  1. celestial sphere, sphere, empyrean, firmament, heavens, vault of heaven, welkinnoun

    the apparent surface of the imaginary sphere on which celestial bodies appear to be projected

Wiktionary

  1. celestial spherenoun

    An abstract sphere of infinite radius which serves as the imaginary backdrop for celestial objects, and of which the visible sky is one hemisphere.

Wikipedia

  1. Celestial sphere

    In astronomy and navigation, the celestial sphere is an abstract sphere that has an arbitrarily large radius and is concentric to Earth. All objects in the sky can be conceived as being projected upon the inner surface of the celestial sphere, which may be centered on Earth or the observer. If centered on the observer, half of the sphere would resemble a hemispherical screen over the observing location. The celestial sphere is a conceptual tool used in spherical astronomy to specify the position of an object in the sky without consideration of its linear distance from the observer. The celestial equator divides the celestial sphere into northern and southern hemispheres.

ChatGPT

  1. celestial sphere

    The celestial sphere is a theoretical sphere of an infinite radius that is concentric to the Earth. It is an imaginary model that is used in astronomy to represent the universe with the Earth at the center. All celestial objects such as stars, planets, and the sun are considered to be projected onto this sphere from their actual positions in space.

Wikidata

  1. Celestial sphere

    In astronomy and navigation, the celestial sphere is an imaginary sphere of arbitrarily large radius, concentric with Earth. All objects in the observer's sky can be thought of as projected upon the inside surface of the celestial sphere, as if it were the underside of a dome or a hemispherical screen. The celestial sphere is a practical tool for spherical astronomy, allowing observers to plot positions of objects in the sky when their distances are unknown or unimportant.

Dictionary of Military and Associated Terms

  1. 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.

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Numerology

  1. Chaldean Numerology

    The numerical value of celestial sphere in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of celestial sphere in Pythagorean Numerology is: 4


Translations for celestial sphere

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"celestial sphere." Definitions.net. STANDS4 LLC, 2024. Web. 23 Jul 2024. <https://www.definitions.net/definition/celestial+sphere>.

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