The Magi who visited the Christ child would have been followers of another sect, "biblical astronomers," if you will, who continued to follow a more pure form of doctrine.
If so, what is there we should know beyond just the correct date?
It is an established fact of history that certain men known as the Magi knew when Jesus had been born.
Stay there until I tell you, for Herod is going to search for the child to kill him." 14 So he got up, took the child and his mother during the night and left for Egypt, 15 where he stayed until the death of Herod.
And so was fulfilled what the Lord had said through the prophet: "Out of Egypt I called my son." 16 When Herod realized that he had been outwitted by the Magi, he was furious, and he gave orders to kill all the boys in Bethlehem and its vicinity who were two years old and under, in accordance with the time he had learned from the Magi.
If you have already studied these matters and seem to be satisfied, but are not convinced that our Lord Jesus Christ was born on the holy day Rosh Ha Shanah (Yom Teruah) on September 29 in 2 BC, again, keep reading!
If you've asked these kinds of questions and not had a satisfactory answer, keep reading and you will be blessed to discover some remarkable evidence that should address many such questions you've had.13 When they had gone, an angel of the Lord appeared to Joseph in a dream."Get up," he said, "take the child and his mother and escape to Egypt.In the account of our Lord's birth, we learn of two distinct groups of people who were knowledgeable about the timing of this very significant event (excepting Mary, Joseph and a few others).The shepherds of Luke 2:8 were told of the birth while they were in the fields near Bethlehem by the angel Gabriel.These men were astronomers called Magi, and there were very likely many more than three of them.