Pseudo-Augustine
Catena Aurea · Matthäusevangelium 2
Then Herod, when he had privily called the wise men, enquired of them diligently what time the star appeared. And he sent them to Bethlehem, and said, Go and search diligently for the young Child; and when ye have found Him, bring me word again, that I may come and worship Him also. When they had heard the king, they departed.
(Serm. in App. 131. 3.) The star had been seen, and with great wonder, nearly two years before. We are to understand that it was signified to them whose the star was, which was visible allthat time till He, whom it signified, was born. Then as soon as Christ was made known to them they set out, and came and worshipped Him in thirteen days from the easta.