[null and void]

One Web article says this might be the crater "Bruno".

What in the Dickens do you use a a key word for the search?

[cogitator]

What in the Dickens do you use a a key word for the search?

I used Google with "monks moon impact observation".

Here's the article with the reference I mentioned:

Leonid strikes the Moon

Here's another article about it, that throws doubt on the impact theory for the 1178 event and Bruno crater:

The Mysterious Case of Crater Giordano Bruno

Same article topic, better picture:

Lunar Impact or Heavenly Coincedence

This article also refers to the Stuart impact photograph.