Ptolemaeus Arabus et Latinus

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سطح فلك نصف النهار ‘the plane of the meridian’

Arabic

Translation of:
References:	Alm. MS Leiden: f. 16r
Greek:	τὸ τοῦ μεσημβρινοῦ ἐπίπεδον [Alm. Heiberg: II.5, 98:16]
Synonyms:
سطح دائرة نصف النهار	[Alm. MS Tunis: 21b.12]