God plays around with his toys about this time of year. An annual phenomena is called the Christmas Star. It is an unusually bright object in the sky. Christians see it as a sign of............whatever they want it to be.
It is not a star at all. It is the conjunction of two planets, Saturn and Jupiter. This year, on or about December 21 the "star" will be as near a perfect conjunction as has happened in 800 years. One planet will hide neatly behind the other and together they will produce a brilliant image in the southern sky. ( southern sky....depending where you are on our pale blue marble)
Astrology types might become flummoxed