Id autem ita esse maxime cognoscitur ex Veneris stella, quod ea, cum solem sequatur, post occasum eius apparens in caelo clarissimeque lucens vesperugo vocitatur, aliis autem temporibus eum antecurrens et oriens ante lucem lucifer appellatur.
This is best seen from the planet Venus, because when it follows the sun it appears in the sky after sunset, and brightly shining is called the Evening Star. At other times it precedes the sun, and rising before the dawn is called Lucifer.
final_alignments\Vitruvius_Architecture_Book_9.json