What is the minimum width and height Of Facebook Open Graph Images?

Question

I had read that images associated with a given URL in the Facebook open graph had to be greater than 50 x 50

However, when we ran the Facebook Object debugger - we g

Answer 1

Looks like they updated their docs:

The picture must be at least 50px by 50px (though minimum 200px by 200px is preferred) and have a maximum aspect ratio of 3:1

developers.facebook.com/docs/reference/dialogs/feed