Moon Size

I hate the term ‘supermoon’. In fact that is the only time I’m going to use that term during this entire post.  The Moon does appear a tiny bit larger in the sky, but it’s not an uncommon thing.  Here’s why this one was particularly good at driving headlines. The technical term for the full Moon we saw this past week is a ‘perigee syzygy,’ which I think sounds way cooler.  Perigee is the term for the Moon’s closest point to the Earth in it’s orbit, and syzygy is the term for an alignment of bodies in space, in this...

Once in a Blue Moon, Twice in a Month

Hey hey! It’s a blue moon today!  For all those people who have used the phrase ‘Once in a blue moon,’ it finally happened.  Turns out that phrase means ‘about once every 2-3 years.’  A blue moon doesn’t mean the moon is changing colour anytime soon, just like a supermoon doesn’t mean the moon actually gains superpowers or gets noticeably bigger.  A blue moon is simply the second full moon in a calendar month. The moon orbits the Earth in approximately 29.5 days.  This was how months were originally formed.  But 12 months x 29.5 days means that we are...