I got onto Weird Astronomy for the "Giordano Bruno" lunar crater. I don't like that the antiscientific haeretic Bruno got a crater named for him, unless it were applied to the bomb I'd like to see dropped on his grave - but hey. Leyenda negra gotta neg.
Winchell Chung notes that the crater is young by Lunar crater reckoning. He then notes earlier writers that the crater might accord with some weirdness which some Catholics witnessed around the Moon 19 June, AD 1178. Feast of Saint John / Mar Yuhanna, as they report - how voodoo.
Chung then notes that Paul Withers scotched these fantasy-flights in 2001. Adding to this, I have a parallel argument.
Bruno's asteroid was 1-3 km. That is "huge", as Chung notes. So yuuge that I'm really not seeing many asteroids like it in the Earthcrossing Apollo range. We can throw in Amors too, on the off chance Mars shifts Ganymed or Eros; they're bigger, and further up the solar well. I draw the line at the Asteroid Belt.
These monsters were common biiilliiions of years ago during the Bombardment. Such are likely how Phobos and Deimos formed: some awful Amor hit Mars and dredged up the mass to launch those debris into orbit. Such are not common in Amor range now. At 1-3 km, this close to Terra-Luna, we can see not only Amors but Apollos as well.
If it happens now it happened then: 800 years ago I don't think around Apollo (or Amor) range were significantly more 1-3 km asteroids than we see there today. Add to this, that our Moon simply doesn't have the same sphere-of-influence that we got. 1-3 km would hit us in preference to our Moon. UPDATE 2/23/21: Comets are a wild card, I admit.
When comes the Day Of The Rock, it'll be some 50-meter thing we can't see too well, like what hit Flagstaff.
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