Not to worry, Molpet. Here's the short version with its reassurance (you have to expand the quoted material to see the phenomenon is visible from 12/19 to 12/25 but, of course, it's most spectacular on the 21st):
Because Jupiter and Saturn will hang low in the southwestern sky, find a location with a wide open view in that direction. They'll be about 14° high when they first become easily visible about 45 minutes after sunset. The pair sets around 7 p.m. local time, so best not be late. Forty-five minutes to 90 minutes after sunset is the prime viewing window. Click here to find your local sunset time and plan accordingly.…
I encourage you to make your own connection with this rare celestial alignment. And if it's cloudy on December 21st don't take it too hard. Jupiter and Saturn will be wonderfully close from the 19th all the way to Christmas. Have a merry and inspirational holiday!
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