Definition of Celestial sphere

1. Noun. The apparent surface of the imaginary sphere on which celestial bodies appear to be projected.

Definition of Celestial sphere

1. Proper noun. (alternative spelling of celestial sphere) ¹

2. Proper noun. (astronomy) An abstract sphere of infinite radius which serves as the imaginary backdrop for celestial objects, and of which the visible sky is one hemisphere. ¹

¹ Source:

Celestial Sphere Pictures

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Lexicographical Neighbors of Celestial Sphere

celestial equators
celestial globe
celestial guidance
celestial hierarchy
celestial horizon
celestial latitude
celestial longitude
celestial mechanics
celestial navigation
celestial object
celestial objects
celestial orbit
celestial point
celestial pole
celestial poles
celestial sphere (current term)
celestial teapot

Literary usage of Celestial sphere

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Short History of Astronomy by Arthur Berry (1899)
"The old astronomers mut this difficulty by supposing that the celestial sphere was so large that any possible motion of the observer would be insignificant ..."

2. Astronomy by Simon Newcomb, Günter Dietmar Roth, Arthur Beer, Edward Singleton Holden (1883)
"THE celestial sphere. Systems of Co-ordinates.—The great circles of the celestial sphere which pass through the two celestial poles are called hour-circles. ..."

3. The Principles and Practice of Surveying by Charles Blaney Breed, George Leonard Hosmer (1908)
"THE celestial sphere. — In order to understand the theory of this ... 34 represents that half of the celestial sphere which is visible at one time to an ..."

4. The Encyclopaedia Britannica: A Dictionary of Arts, Sciences, and General by Thomas Spencer Baynes (1888)
"Since the sun travels thus around the celestial sphere, it ш manifest that the successive returns of the sun to the meridian cannot recur after the same ..."

5. The American Practical Navigator: Being an Epitome of Navigation and by Nathaniel Bowditch, George Wood Logan (1906)
"THE celestial sphere.—An observer upon the surface of the earth appears to view the heavenly bodies as if they were situated upon the surface of a vast ..."

6. General Astronomy by Harold Spencer Jones (1922)
"CHAPTER I THE celestial sphere. The celestial sphere.—Suppose an observer to be viewing the heavens on a clear night. He will see a large number of stars of ..."

7. Encyclopaedia Britannica, a Dictionary of Arts, Sciences, Literature and edited by Hugh Chisholm (1910)
"This line, extended upwards, meets the celestial sphere in the zenith. ... As the earth revolves from west to cast the celestial sphere appears to us to ..."

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