What was the Star of Bethlehem?

We know "the star they had seen when it rose" was seen 2 years earlier, since Herod ordered the massacre of the boys 2 years old and younger according to "the time which he had diligently enquired of the wise men." We also know the star is the one spoken of by Balaam....

"I shall see him, but not now: I shall behold him, but not nigh: there shall come a Star out of Jacob, and a Sceptre shall rise out of Israel."

This is Balaam's 4th oracle in Numbers 24. It comes from the mouth of Balaam but is the word of the Lord as given by God. For some reason, God chooses to speak a prophecy of the coming Messiah thru Balaam who is serving as God's "donkey". Not only is the scepter to come out of Israel, a more specific prophecy is given by Jacob concering Judah in Genesis 49:

The sceptre shall not depart from Judah, nor a lawgiver from between his feet, until Shiloh come; and unto him shall the gathering of the people be."

We also know from Isaiah 9:

"The people that walked in darkness have seen a great light: they that dwell in the land of the shadow of death, upon them hath the light shined."

We know from Micah:

"But thou, Beth-lehem Ephratah, though thou be little among the thousands of Judah, yet out of thee shall he come forth unto me that is to be ruler in Israel; whose goings forth have been from of old, from everlasting."

The "Star of Bethlehem" has now been revealed to the wise men, magi, kings who understood with faith in these and other prophecies. The timing of the coming star was also understood as wisdom had been given to Daniel in chapter 9 about when the Anointed One would come and this understanding was obviously given by God to these men 2 years before Christ's birth in flesh.

1. Christ Jesus is the "Star of Bethlehem".

2. Christ Jesus "is the first born of creation."

3. Christ Jesus is the "light of the world."

   In this most majestic event of all time, God planned and orchestrated the Star of Bethlehem to lead and display with pin-point accuracy the arrival of his only begotten with an intersection of earth's creatures centered over a manger where lay manna from heaven for a starving world:

"I have installed my king on Zion, my holy mountain." I will proclaim the LORD's decree: He said to me, "You are my son; today I have become your father."

(Psalm 2.6-7) God used the Star of Bethlehem to signal this day---the day Jesus was born.    

There's no way to answer this definitively: http://en.wikipedia.org/wiki/Star_of_Bethlehem

There are probably several astrological events that could construe "a rising star" to the ancients, but there's no natural phenomenon that would fit a literal reading of verse 9.

I personally find this part of the story symbolic. It's also interesting to note that the Age of Pisces began around the same time as Jesus' birth: http://en.wikipedia.org/wiki/Astrological_age#The_Age_of_Pisces_.28The_Piscean_Age.29

Whilst answering a recent (2018) question about the Star of Bethlehem, I came across an article that suggests this strange heavenly body might have a supernatural cause:

"What exactly was the star of Bethlehem? The Greek word translated “star” in the text is the word aster, which is the normal word for a star or celestial body. The word is used 24 times in the New Testament, and most of the time it refers to a celestial body. It can be used to denote angels, as in Revelation 12:4, where aster seems to refer to the fallen angels who followed Satan’s rebellion. Basic rules of biblical interpretation state that we should take the normal sense of a word unless there is compelling evidence to suggest otherwise. In that case, the star of Bethlehem should be considered an actual heavenly body. Many Bible scholars suggest a natural explanation for the star of Bethlehem, their theories ranging from a supernova to a comet to an alignment of planets. Something in the heavens provided a brighter-than-normal light in the sky.

However, there is evidence to suggest that the star of Bethlehem was not a natural stellar phenomenon, but something unexplained by science. First, the fact that the star of Bethlehem seemed to appear only to the magi indicates that this was no ordinary star. Also, celestial bodies normally move from east to west due to the earth’s rotation, yet the star of Bethlehem led the magi from Jerusalem south to Bethlehem. Not only that, but it led them directly to the place where Joseph and Mary were staying, stopping overhead. There is no natural stellar phenomenon that can do that.

So, if the normal usage of the word star doesn’t fit the context, what does? The star of Bethlehem in Matthew 2:1–12 was likely a manifestation of the Shekinah Glory. The Shekinah, which literally means “dwelling of God,” was the visible presence of the Lord. Prior to this, the most notable appearance of the Shekinah was the pillar of cloud that led the Israelites by day and the pillar of fire that led them by night (Exodus 13:21). The Shekinah fits the evidence. The Shekinah can obviously lead people to specific locations, and it was seen later in connection with Christ’s ministry (e.g., Matthew 17:5; Acts 1:9). It shouldn’t surprise us that God would use a miraculous sign to signal the advent of His Son into the world. Those with eyes to see joyfully beheld His glory."

Source: https://www.gotquestions.org/star-of-Bethlehem.html

Just something else for people to consider.