Tonight marks a spectacular event - an event in our solar system so rare that it can take decades to get a good view. Jupiter and Saturn will appear closer to each other than they have done in hundreds of years, which also happens to be the winter solstice. Jupiter & Saturn are doing a planetary dance that will result in the Great Conjunction on Dec 21, just after sunset. At the same time, Earth is zipping around on an inner track, going around 12 times for every time Jupiter goes around. Monday is an exceptional event for two reasons – we can see it, and they are really close, according to Ms McCarthy.
Source: Irish Examiner December 21, 2020 20:17 UTC