Apertum et evidentem ita demum sustinet luna defectum, cum pleno lumine rotundata, solique contraria, ab eius orbe centum octoginta partibus (id est signo septimo) disparatur.
Then only does she suffer a clear and evident eclipse, when, rounded out with her full light and opposite the sun, she is distant from its orb by 180 degrees (i.e. is in the seventh sign).
final_alignments\Ammianus_Marcellinus_Book20.json