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Celestial sphere
Meaning
Noun
●
In Astronomy:
The
apparent
outer
limit
of
space
; an
abstract
sphere
of
infinite
radius
which
serves
as the
imaginary
backdrop
for
celestial objects
, and of which the
visible
sky
is one hemisphere.
●
One of the Celestial
spheres
in early cosmology.
Name
●
the
figure
of the
universe
as an
imaginary
sphere
whose
center
is the Earth
●
Alternative
spelling
of
celestial
sphere
Sourced from
Wiktionary
Synonyms
Empyrean
Firmament
Heavens
Welkin
Celestial Sphere
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