Ptolemaeus Arabus et Latinus

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(un cercle) dont le centre est celui de cet orbe ‘concentric’

French

Translation of:
References:	PH Morelon: I.3:2, 18:9-10
Arabic:	(دائرة) يكون مركزها مركز هذا الفلك [PH Morelon: I.3:2, 19:6-7]
Synonyms:
de même centre	[PH Morelon: I.11:7, 38:28-29]
tracé autour de son centre	[PH Morelon: I.3:3, 18:13]