ἀστρονομία
From LSJ
τούτου δὲ συμβαίνοντος ἀναγκαῖον γίγνεσθαι πάροδον καὶ τροπὰς τῶν ἐνδεδεμένων ἄστρων → but if this were so, there would have to be passings and turnings of the fixed stars
English (LSJ)
ἡ,
A astronomy, Hp.Aër.2, Ar.Nu.201, Pl.Smp.188b, etc.; title of a work ascribed to Hesiod, and Ptolemy's σύνταξις, Olymp.in Mete.68.20, al.
German (Pape)
[Seite 378] ἡ, Sternkunde, Ar. Nub. 201; ἡ περὶ ἄστρων τε φορᾶς καὶ ἐνιαυτῶν ὥρας Plat. Conv. 188 b u. Folgde.
Greek (Liddell-Scott)
ἀστρονομία: ἡ, Ἱππ. π. Ἀέρ. 281, Ἀριστοφ. Νεφέλ. 201, Πλάτ., κλπ.