PAL

Ptolemaeus Arabus et Latinus

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ἰσημερινὴ σκιά‘equinoctial shadow’

Greek

References: Alm. Heiberg: II.6, 106:4-5,17
Translated into:
Arabic: الظلّ في الاستواءين  [Alm. MS Tunis: 23a.28, 23b.8]
Arabic: ظلّ الاعتدال [Alm. MS Leiden: f. 17v]
Modern translations:
English: equinoctial shadow [Alm. Toomer: 84]