PAL

Ptolemaeus Arabus et Latinus

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ظلّ الاعتدال ‘equinoctial shadow’

Arabic

References: Alm. MS Leiden: f. 17v
Translation of:
Greek: ἰσημερινὴ σκιά [Alm. Heiberg: II.6, 106:4-5,17]
Synonyms:
الظلّ في الاستواءين [Alm. MS Tunis: 23a.28, 23b.8]