ἡλιακός

Νυνὶ δὲ κατώτερον φέρεται ὁ ἥλιος καὶ ἐπὶ ἐκκέντρου κύκλου κινεῖται, καθάπερ ὑπογέγραπται· οὐ γὰρ τὸ αὐτὸ κέντρον ἐστὶ τοῦ ἡλιακοῦ κύκλου καὶ τοῦ ζῳδιακοῦ, ἀλλ᾽ ἐφ᾽ ἓν μέρος παρῆκται ἡ τοῦ ἡλίου σφαῖρα. Διὰ δὲ τὴν τοιαύτην θέσιν εἰς δ μέρη ἄνισα διαιρεῖται ὁ ἡλιακὸς δρόμος· (...)

‘Now, the Sun passes lower and moves upon an eccentric cycle, as has been indicated: for the centre of the solar circle is not the same as that of the zodiacal circle, but the sphere of the Sun is shifted to one side. And due to a position like this, the solar course is divided into 4 unequal parts; (...)’