- On January 31, we’ll get the third supermoon in a row, which will also be the second full moon of January and coincide with a total lunar eclipse.
- The last time all that happened together was almost 152 years ago.
- These celestial phenomena aren’t actually that dramatic on their own, but their alignment is a pretty cool reason to look at the sky.
It’s not often that you get to say a “super blue blood moon” is coming.
But that’s exactly what we’ll get on January 31, for the first time in more than 150 years.
For the first time since March 31, 1866, we’ll have a total lunar eclipse that happens during the second full moon of a calendar month and also happens to occur when the full moon is near the point of its orbit that brings it closer to Earth. That’s a blood moon, a blue moon, and a supermoon all at once.
But know that these names can make an event like this sound more dramatic than it appears — it won’t be anything like the total solar eclipse of 2017.
Unless you are a regular moon-watcher, you may not notice anything different about this full moon. Yet the remarkable alignment of events should nonetheless serve as a reminder to look up in the the sky and observe our planet’s satellite.
“Sometimes the celestial rhythms sync up just right to wow us,” a NASA post explains.
How ‘super’ a supermoon really is
A supermoon is for many astronomers a controversial term. Supermoons occur when we get a full moon near or at the point when the moon’s orbit is closest to Earth, also called the perigee of its orbit (the technical term for the event is really perigee-syzygy).
<img src="http://static4.businessinsider.com/image/5a465d22b0bcd5b9008b773a-1280/29supermoonsize1280.jpg" alt="supermoon graphic" data-mce-source="NASA/JPL-Caltech" data-mce-caption="It's nearly impossible to compare the apparent size of the supermoon Read More Here