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What was the star of Bethlehem?


3:00 P.M. ET Dec. 21, 2011

The magi follow the star in this sixth-century mosaic at the Basilica of Sant'Apollinare near Ravenna, Italy. A web-only public domain image.
The magi follow the star in this sixth-century mosaic at the Basilica of Sant'Apollinare near Ravenna, Italy. A web-only public domain image.

“After Jesus was born in Bethlehem in the territory of Judea during the reign of King Herod, magi came from the east to Jerusalem. They asked, ‘Where is the newborn king of the Jews? We’ve seen his star in the east, and we’ve come to honor him.'” (Matthew 2:1-2, Common English Bible)

Just about every year at Christmastime, Nick Strobel can count on getting questions about the star that guided the magi.

Strobel is the planetarium director and a physical science professor at Bakersfield College in Southern California. As an astronomer and lifelong United Methodist, he has a certain affinity with the Bible’s most famous stargazers.

“We both have a love of the night sky,” said Strobel, a member of Wesley United Methodist Church in Bakersfield. “And, we search for a place or person where heaven and earth meet, and we both found that in the person of Jesus.”

The biblical account of the magi does not quite match the typical church Christmas pageant image of three little boys in scratchy beards and lopsided crowns dropping gifts by the baby Jesus’ manger.

The second chapter of Matthew — the only Gospel where the wise men appear — does not specify their number or say they were kings. Matthew also does not mention the no-vacancies inn, the manger or the quaking shepherds — those are all found in the Gospel of Luke.

Nick Strobel, A web-only photo courtesy of Nick Strobel.
Nick Strobel, A web-only photo courtesy of Nick Strobel.

Instead, in Matthew, the wise men visit the holy family in a house in Bethlehem some point after Jesus’ birth. The number three probably derives from the three gifts they brought to the Christ child — gold, frankincense and myrrh.

The magi — called magoi in the original Greek — were likely sages and astrologers. The tradition that they were three kings named Gaspar, Melchior and Balthasar developed centuries later.

On this the Bible and Christmas tradition do agree: The magi found the newborn king by following a star.

The ancients believed God would make destiny manifest in the stars, said Gregory J. Riley, New Testament professor at United Methodist-related Claremont (Calif.) School of Theology. So, it was no surprise that Jesus’ birth was accompanied “by the appearance of his star in the very fabric of the heavens.”

The exact nature of that heavenly body has been a source of speculation — for Bible scholars, children’s book authors, astronomers and, in recent decades, planetarium audiences. Discussion of the star is part of Bakersfield College’s annual December planetarium show, “Season of Light,” which Strobel hosts.

“…And look, the star they had seen in the east went ahead of them until it stood over the place where the child was. When they saw the star, they were filled with joy.” (Matthew 2: 9-10)

Strobel, 46, has his own thoughts about the star, which he has detailed in his blog.

Since the night sky can vary greatly depending on the year and season, Strobel first needed a good estimate for Jesus’ birth year to evaluate these possibilities.

The Bible does not give Jesus’ exact birth date. However, many biblical scholars and historians now think Jesus most likely was born around 6 to 4 B.C., and Strobel uses those years in his dating. That puts Jesus’ birth sometime near the death of Herod the Great (the wicked Herod mentioned at the beginning of Matthew) and Jesus’ ministry during the early years of Pontius Pilate (the wicked Roman governor in all four Gospels).

Strobel points to four natural phenomena that some astronomers think might explain the celestial sighting: a nova, a comet, a planetary conjunction and Jupiter’s retrograde motion.


Chinese astronomers, Strobel said, recorded that a new star (or nova) appeared in the constellation Capricorn during March and April of 5 B.C. A nova is actually a white dwarf — that is, a dying star — that has gathered enough material, usually from another nearby star, to build up pressure and explode. A nova quickly peaks in brightness within a few days and then fades to invisible over a few months.

The nova the Chinese spotted would have first appeared in the east (that much fits with the Gospel of Matthew). However, that nova would not have visibly moved much as the magi headed toward Bethlehem, which is why Strobel sees it as an unlikely candidate for Star of Bethlehem status.


Many ancient cultures, including the Chinese, regarded comets as heralds of important events. Trouble is, there are no comet sightings recorded around 6 to 4 B.C. Strobel said Halley’s Comet made a swing by earth in 12 B.C., too early to portend the Bethlehem birth. That’s probably a good a thing. The ancients typically viewed a comet as a bad sign — not a proclamation of joy to the world.

Planetary conjunction

Planetary conjunctions, where two or more planets appear very close together in the night sky, may not make the headlines today the way comets do. Still, Strobel thinks such a conjunction is a much likelier prospect for the nativity’s starring role. And, astronomically speaking, 7 to 6 B.C. were good years for conjunctions.

In late May, late September and early December 7 B.C., Jupiter and Saturn moved past each other three times in the constellation Pisces. Such an occurrence happens only once every 900 years. The following February, Mars, Jupiter and Saturn formed a near conjunction in Pisces, which happens once every 800 years.

The combination of Jupiter and Saturn would have seemed especially auspicious to these astrologers in the Near East, Strobel said. Jupiter symbolized royalty, and Saturn represented the Mesopotamian deity who protected Israel. In addition, ancient astrologers associated Pisces with the Jewish people.

The bad guy of Christmas, a commentary by Heather Hahn.

“(The wise men) would have been aware of the sky and probably kept records of the sky going back centuries,” Strobel said. “They would have known this was a rare occurrence. They’d think, ‘Well maybe this is telling us that something really interesting is going to be happening there in Israel.’”

Jupiter’s retrograde motion

If the wise men were in need of a further sign in the heavens, they got one in 5 B.C., Strobel said. That year, Jupiter, instead of “wandering” eastward as planets typically appear to do, seemed to stop and then go backward among the stars in what astronomers call a retrograde motion.

Strobel compared the motion to what happens when a car accelerates past another car. It makes the slower vehicle look like it is standing still and then receding. In 5 B.C., earth passed Jupiter and it appeared to be stationary for about a week — perfect for hovering in place over a momentous birth.

Among the various astronomical possibilities, Strobel thinks that the planetary conjunction and stationary Jupiter theories probably get closest to what the magi might have seen.

The three wise men appear before King Herod in this stained-glass window by an anonymous artist. Despite their crowns, the magi were not kings in the Bible. A web-only public domain image.
The three wise men appear before King Herod in this stained-glass window by an anonymous artist. Despite their crowns, the magi were not kings in the Bible. A web-only public domain image.

“They entered the house and saw the child with Mary his mother. Falling to their knees, they honored him. Then they opened their treasure chests and presented him with gifts of gold, frankincense and myrrh.” (Matthew 2: 11)

The Rev. Ben Witherington III, a United Methodist elder and New Testament professor at Asbury Theological Seminary in Wilmore, Ky., agrees that astronomical phenomena could help explain the magi’s guide. But, he points out, the magi like most ancients would have seen stars and other celestial objects as living beings — much like “the heavenly host” that visited the shepherds.

While it’s fun to speculate, Strobel said, the nature of the star does not matter to his faith. In fact, he would not care if Matthew made up the whole story of the magi.

“He was not writing a science textbook or newspaper account,” Strobel said, “but rather a book to persuade people that this person called Jesus was the Son of God, one who should be worshipped, and one who showed us how to live as God wants us to live.” The story of the nativity contains a deeper truth than can be found in any star chart, he said.

“God, the infinite power of the universe, is just so willing and wanting to have a relationship with us that he became a powerless infant who had to be cared for,” he said. “That’s pretty amazing that God would be willing to do that.”

*Hahn is a multimedia news reporter for United Methodist News Service.

News media contact: Heather Hahn, Nashville, Tenn., (615) 742-5470 or newsdesk@umcom.org.

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Showing 7 comments

  • Susan Ozmore 1 comment collapsed Collapse Expand

    Thank you for this article. I am so glad that the UMC is not "anti-science" like some other churches. For me the more we learn in science, the more amazing and awe-inspiring the creation becomes.

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  • RainboWatcher40 1 comment collapsed Collapse Expand

    A band of angels---able to appear at will, and to LEAD and to come and stand over a set point.And to last as long as needed.     Do we think only the angels praising were the only ones involved. It WAS a band of angels.

    Since the "star" appeared to the Magoi ~ 2 years prior to their actual arrival, (thus Herod's edict to kill all male children 2 yrs and under)--perhaps it was the SAME angel band that appeared to the shepherds---appeared on that night, and kept shining until the prophecies were fulfilled.

    I'm just surprised that only a few groups even consider this explanation. 

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  • Carl_Benge 1 comment collapsed Collapse Expand

    It is amazing how much science has proven of the historical eyewitness of the Scriptures especially in the accounts from the Gospel. 

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  • BBryan84 2 comments collapsed Collapse Expand

    It does matter that Matthew DID NOT make up the story of the magi. The Bible is inspired by God and and does not contain "made-up" stories. 2 Peter 1:20.

    We do not need to find natural phenomena to explain supernatural events in the Bible.

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  • JaneIves 1 comment collapsed Collapse Expand

    Of course the Bible is inspired by God, but written down by human beings, much from memory years after events. Not every verse carries the same weight. By viewing specific texts through the "Jesus lens," we can determine their authenticity as messages from God. Teaching people otherwise is setting them up for disillusionment and the danger that they will "throw out the baby with the bath" when they discover the discrepancies and contradictions within the scriptures as well as with scientific knowledge.

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  • Arthur Dersch 2 comments collapsed Collapse Expand

    For Heather Hahn: your excellent article on the conjunction of the three - Mars, Jupiter and Saturn is consistant with a program run at the Arlington VA Planatarium perhaps fifteen years ago, that my wife and I attended.  What the astronomers did there was take the established sky charts for the previous 70(?) years and run the program backwards.
    And, they too observed the conjunction of the three planets and pointed out that in mid-April of 6 BC they stopped triangulating - like a road sign - and aligned vertical to the earth - which may have somehow collected their passive energy and beamed a ray of light downward.  (It's my understanding that although their experiment was approved, after it became obvious that this confirmed the Bible's report of the "star" they were dissuaded from continuing the program on this government-owned planatarium.) 

    We'll try to get to Bakersfield next December.. Art Dersch

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  • UMNS editor 1 comment collapsed Collapse Expand

    Thank you for your kind words. I hope you can make it out to Bakersfield some December. Please have a merry Christmas filled with the joy of Christ's birth.

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