Cum praeteriens vadat ad orientis caeli partes, relaxari ab impetu solis extremamque eius partem candentiae oppido quam tenui linia ad terram mittere splendorem, et ita ex eo eam secundam vocari.
When the moon in its passage moves towards the eastern parts of the sky, it begins to be released from the suns force, and the extreme edge of its shining hemisphere in a very thin line lets fall its splendour on the earth; and so therefrom it is called the second moon.
final_alignments\Vitruvius_Architecture_Book_9.json