فلك السماء ‘heavenly sphere’
Arabic
| References: | Alm. MS Leiden: I.6:69, f.4v:35 | 
|---|---|
| Translation of: | |
| Greek: | σφαίρα τοῦ οὐρανοῦ [Alm. Heiberg: I.6, 20:23] | 
| Translated into: | |
| Latin: | spera celi [Alm. Gerard: I.6:69, f. 3rb:37] | 
| Synonyms: | |
| الكرة السماويّة | [Alm. MS Leiden: I.3:32, f. 3v:8. – Alm. MS Tunis: I.3:32, f. 2v:24-25] | 
| كرة السماء | [Alm. MS Tunis: I.6:,69 f. 4v:13] | 
