The convergence between these two planets is quite rare, they happen about once every 20 years, but this convergenceextremely rare due to how close they will be to each other. Previously, this only happened on March 4, 1226.
Patrick Hartigan, astronomer at Rice University
Jupiter and Saturn have been approaching each other since summer. From December 16 to December 25, they will be separated by a distance less than the diameter of the full moon.
Residents of the equator will have better conditions forobservations, however, the phenomenon can be observed by all people on Earth, if the weather permits. The planets will appear in the western sky about an hour after sunset. The further north the observer is, the less time he will have before the planets descend below the horizon. However, Jupiter and Saturn are bright enough to be seen at dusk.
The next time these celestial bodies converge so close only on March 15, 2080, and after - only in 2400.
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