PAL

Ptolemaeus Arabus et Latinus

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دائرة نصف النهارالتي تمرّ بالقطبين ‘solstitial colure’

Arabic

References: Plan. Sidoli+Berggren: 440, 461
Modern translations:
English: solstitial colure [Plan. Sidoli+Berggren: ?]
Synonyms:
الدائرة التي تمرّ بالقطبين[Plan. Sidoli+Berggren: 485, 514]