On December 21st, 45 minutes after sunset the two largest planets, Jupiter and Saturn, will be so close to one another in the sky that they will appear to be fused into a single point of light. This “Star of Bethlehem” was last seen 800 years ago in 1226.
Look to the southwestern sky. Jupiter will look like a bright star and will be easily visible. Saturn will be slightly fainter and will appear slightly above and to the left of Jupiter until December 21, when Jupiter will overtake it and they will reverse positions in the sky.
This miraculous phenomenon will not be repeated again until March 15, 2080 and then it will not happen again until after 2,400.
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