BBC Sky at Night

A month with THE MOON

What’s the first thing you look for in the sky each night? Most of us head straight for the Moon, and with good reason, as many of us got started in astronomy by watching our nearest neighbour. It’s an easy target and even beginners can get joy from observing the Moon and learning its phases. All these years later, I still feel that same excitement I felt when I was a child, as I watched its shape change from one night to the next.

While the Moon is certainly wonderful on its own, it can also be our guide to the night sky: a jumping-off point to places all around the Galaxy. Try and make a habit of keeping an eye on it and you’ll get a feel for its cycle. From night to night you’ll see it move about 13° eastward relative to the much more distant background stars. That’s a little more than the width of your fist at arm’s length. Watch closely and you might even be able to see the Moon creep along, slowly and silently, over a single night. As it goes, it meets up with new stars,

You’re reading a preview, subscribe to read more.

More from BBC Sky at Night

BBC Sky at Night2 min read
Comets And Asteroids
Minor planet 2 Pallas reaches opposition on 17 May when it can be found shining within the stars of Hercules at magnitude +8.9. At this brightness, it’s a tricky binocular find, but a small telescope should pick it up without any difficulty. Pallas w
BBC Sky at Night1 min read
On Facebook
Many of you headed to Facebook to welcome the return of The Sky at Night to our TV screens in April: Stuart Sumner At last. Lawrence Craus Love this programme. David Simmons Great news. A bright, intelligent programme amongst so much dross! Christoph
BBC Sky at Night3 min read
Build A Parallax-measuring Tool
Hold up a finger and look at it with just one eye, then switch to just the other and you'll see your finger appear to ‘jump’ from side to side. The further away the finger, the smaller the jump. This apparent shift of a nearby object against a distan

Related Books & Audiobooks