The Great Conjunction – Closest in Centuries!
Jupiter and Saturn will merge in the night sky this evening (Monday), appearing closer to one another than they have since as early as Galileo’s time in the 17th century but more relatable (observable) in 800 years ago!
Though Conjunctions between the two largest planets in our solar system aren’t particularly rare, Jupiter passes its neighbor Saturn in their respective laps around the sun every 20 years.
But the one coming up is especially close: Jupiter and Saturn will be just one-tenth of a degree apart from our perspective or about one-fifth the width of a full moon. They should be easily visible around the world a little after sunset, weather permitting.
Toss in the winter solstice in the Northern Hemisphere, the longest night of the year — and the summer solstice in the Southern Hemisphere — promises to be one of the greatest of Great Conjunctions.
What is most rare is the close conjunction that occurs in our nighttime sky. It’s safe to say this once in a lifetime opportunity is one for the books & something that merits being labeled as rare or special.
It will be the closest Jupiter-Saturn pairing since July 1623, when the two planets appeared a little nearer. This conjunction was almost impossible to see, however, because of its closeness to the sun.
Considerably closer and in plain view was the March 1226 conjunction of the two planets — when Genghis Khan was conquering Asia. Monday’s conjunction will be the closest pairing that is visible since way back then.
Saturn and Jupiter have been drawing closer in the south-southwest sky for weeks. Jupiter — bigger and closer to Earth — is vastly brighter.
To see it, be ready shortly after sunset Monday, looking to the southwest fairly low on the horizon. Saturn will be the smaller, fainter blob at Jupiter’s upper right. Binoculars will be needed to separate the two planets.
Despite appearances, Jupiter and Saturn will actually be more than 450 million miles (730 million kilometers) apart. Earth, meanwhile, will be 550 million miles (890 million kilometers) from Jupiter.
A telescope will not only capture Jupiter and Saturn in the same field of view, but even some of their brightest moons.
Their next super-close pairing: March 15, 2080.
Many thanks to Tyler Schlitt Photographyfor contributing images to this blog! Be sure to visit THIS LINK to view more of his work!