As 2020 involves an in depth , the system has decided to grace us with a cosmic Christmas miracle that hasn't been witnessed in nearly 800 years. On Dec. 21 (aka the December solstice), Jupiter and Saturn will align so closely within the night sky that they will almost appear to collide from our viewpoint here on Earth, creating a radiant point of sunshine often mentioned because the “Star of Bethlehem” or the “Christmas Star.”
You'd need to go all the way back to only before dawn on March 4, 1226, to ascertain a better alignment between these objects visible within the night sky.
“Alignments between these two planets are rather rare, occurring once every 20 years approximately , but this conjunction is exceptionally rare due to how close the planets will appear to be to at least one another,” said Patrick Hartigan, an astronomer at Rice University, consistent with Forbes. “You'd need to go all the way back to only before dawn on March 4, 1226, to ascertain a better alignment between these objects visible within the night sky.”
The event, sometimes mentioned because the Great Conjunction, occurs roughly every 19 to twenty years, but this is often the closest the planets will line up within the night sky since the center Ages. Technically, Saturn are going to be 10 au (astronomical units) from Earth, and Jupiter are going to be 5 au away, but they're going to appear to be but the diameter of a full-of-the-moon apart.
To catch a glimpse of the phenomenon for yourself, confirm you've got a transparent view to the southwest about 45 minutes after sunset. The planets are going to be at their closest on Dec. 21, but the “Christmas Star” are going to be visible from anywhere on Earth for about one hour after sunset within the hemisphere for the whole fourth week of December. If you're viewing with a telescope, you'll even be ready to see Jupiter and Saturn's largest moons orbiting them that week. subsequent Great Conjunction this close won't happen until March 15, 2080, so make certain to require a peek out your window later this month for an excellent holiday treat.