celestial sphere

noun

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.

Similar
empyreanfirmamentheavensvault of heavenwelkinsphere
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Meanings

celestial sphere1

nouncelestial sphere (plural celestial spheres)

plural celestial spheres

  1. astronomyThe 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.

    Synonyms: empyrean, firmament, heavens, vault of heaven, welkin

  2. One of the nested concentric transparent spheres around the Earth in which celestial bodies such as stars and planets were said to be embedded in ancient and medieval Western cosmology, and whose rotation was said to produce the motion of such bodies.
proper noun

    Celestial Sphere2

    proper nouncelestial Sphere
    1. alternativeAlternative spelling of celestial sphere.

    Synonyms & antonyms

    nounThe 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.

    Similar
    empyreanfirmamentheavensvault of heavenwelkin

    More synonyms by meaning

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

    Similar
    sphereempyreanfirmamentheavensvault of heavenwelkin
    Broader
    surface
    Also see
    empyreanfirmamentheavensskyspherewelkin

    Synonym sets from Open English WordNet, CC BY 4.0.

    Translations

    Arabic قُبَّة سَمَاوِيَّةٍ
    • قُبَّة سَمَاوِيَّةٍabstract sphere of infinite radius
    Basque zeru-esfera
    • zeru-esferaabstract sphere of infinite radius
    Bengali খ-গোলক
    • খ-গোলক (kho-gōlok)abstract sphere of infinite radius
    Bulgarian небесна сфера
    • небесна сфера (nebesna sfera)abstract sphere of infinite radius
    Catalan esfera celeste
    • esfera celesteabstract sphere of infinite radius
    Chinese Mandarin 天球
    • 天球 (tiānqiú)abstract sphere of infinite radius
    Czech nebeská sféra
    • nebeská sféraabstract sphere of infinite radius
    Danish himmelkugle
    • himmelkugleabstract sphere of infinite radius
    Dutch hemelbol
    • hemelbolabstract sphere of infinite radius
    Esperanto ĉielosfero
    • ĉielosferoabstract sphere of infinite radius
    Estonian taevasfäär
    • taevasfäärabstract sphere of infinite radius
    Finnish taivaanpallo
    • taivaanpalloabstract sphere of infinite radius
    French sphère céleste
    • sphère célesteabstract sphere of infinite radius
    German Himmelskugel
    • Himmelskugelabstract sphere of infinite radius
    Greek ουράνια σφαίρα
    • ουράνια σφαίρα (ouránia sfaíra)abstract sphere of infinite radius
    Hebrew כיפת השמים
    • כיפת השמים (kipet ha-shemayim)abstract sphere of infinite radius
    Hindi खगोलीय गोला
    • खगोलीय गोला (khagolīya golā)abstract sphere of infinite radius
    Hungarian éggömb
    • éggömbabstract sphere of infinite radius
    Indonesian bola langit
    • bola langitabstract sphere of infinite radius
    Irish sféar neamhaí
    • sféar neamhaíabstract sphere of infinite radius
    Italian sfera celeste
    • sfera celesteabstract sphere of infinite radius
    Japanese 天球
    • 天球 (tenkyū)abstract sphere of infinite radius
    Korean 천구
    • 천구 (cheon'gu)abstract sphere of infinite radius
    Latvian debess sfēra
    • debess sfēraabstract sphere of infinite radius
    Lithuanian dangaus sfera
    • dangaus sferaabstract sphere of infinite radius
    Malay sfera cakerawala
    • sfera cakerawalaabstract sphere of infinite radius
    Norwegian Bokmål himmelhvelving
    • himmelhvelvingabstract sphere of infinite radius
    Persian کره سپهری, گوی سپهری
    • کره سپهری (koreye-sepehri)abstract sphere of infinite radius
    • گوی سپهری (guye-sepehri)abstract sphere of infinite radius
    Polish sfera niebieska
    • sfera niebieskaabstract sphere of infinite radius
    Portuguese esfera celeste
    • esfera celesteabstract sphere of infinite radius
    Romanian sferă cerească
    • sferă cereascăabstract sphere of infinite radius
    Russian небе́сная сфе́ра
    • небе́сная сфе́ра (nebésnaja sféra)abstract sphere of infinite radius
    Slovak nebeská sféra
    • nebeská sféraabstract sphere of infinite radius
    Spanish esfera celeste
    • esfera celesteabstract sphere of infinite radius
    Swedish himmelssfär, himlavalv
    • himmelssfärabstract sphere of infinite radius
    • himlavalvabstract sphere of infinite radius
    Tamil வானக்கோளம்
    • வானக்கோளம் (vāṉakkōḷam)abstract sphere of infinite radius
    Thai ทรงกลมท้องฟ้า
    • ทรงกลมท้องฟ้า (song-glom-tɔ́ɔng-fáa)abstract sphere of infinite radius
    Turkish gökküre
    • gökküreabstract sphere of infinite radius
    Ukrainian небесна сфера
    • небесна сфера (nebesna sfera)abstract sphere of infinite radius
    Vietnamese thiên cầu
    • thiên cầuabstract sphere of infinite radius
    Cite this entry
    APA

    celestial sphere. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/celestial%20sphere

    MLA

    “celestial sphere.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/celestial%20sphere. Accessed November 4, 2026.

    Chicago

    WatkinsX Dictionary, s.v. “celestial sphere,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/celestial%20sphere.

    Source: celestial sphere on Wiktionary, CC BY-SA 4.0.