Reply to post: Re: Its just a big moon.

'Extra-supermoon' to appear next week

David Harper 1

Re: Its just a big moon.

"It was near a half moon last night and the dark/light edge looked spectacular when the clouds weren't hiding it."

The technical name for the dark/light edge is "terminator", and it's even more spectacular when viewed through a telescope or binoculars because that's where the Sun is just rising, so the shadows are very long, which highlights the lunar relief. If you know when and where to look, you can see the eastern edges of craters in brilliant sunlight whilst the interior of the crater is still in darkness.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon