‘The Great Conjunction’ of Jupiter and Saturn a Rare Event in the Night Sky

The Great Conjunction - NASA : Bill Dunford

Jupiter and Saturn will appear to “come together” during the month of December, creating “The Great Conjunction,” a solar system sight not seen for 800 years.

The planets create a bright nighttime sky when they align most closely, on Dec. 21, creating The Great Conjunction, also referred to as the “Christmas Star.”

The two planets regularly pass each other but this year’s alignment is the closest — Jupiter and Saturn are only separated by a mere 600 million kilometers. It likely won’t be for another 60 years when the two planets are so close together.

For good tips on how to view The Great Conjunction go to the NASA channel.