For the first time in 800 years, a rare Christmas Star can be seen in our night sky this week.

Enter your number to get our free mobile app

According to Siouxland Proud, Jupiter and Saturn are getting closer together with each night this week. On December 21, these two planets will be almost perfectly aligned to where it looks like they are touching. The event, astronomers refer to as a conjunction, will make it appear as though there's a bright double planet in the sky. This conjunction will be the closest these two planets have appeared since March 4, 1226.

Since this historical event takes places on Christmas week, it's being referred to as the "Christmas Star"--Fitting.

When and where to see the 'Christmas Star'?

For the best chance at seeing the "Christmas Star", you'll want to look low in the southwest horizon an hour after sunset. According to timeanddate.com, sunset is at 4:38 p.m. on December 21. That means that by 5:40 p.m. you should be all set to view. You'll also want binoculars or a small telescope for the best viewing experience.

The Siouxland Proud report states that according to NASA the next great conjunction won't happen until 2080. Basically, you don't want to miss out on this incredible sight.

CHECK THEM OUT: 100 years of Christmas toys, gifts and fads