Very nice... I love black cats. 
I know it's not my place...but I took the liberty to do a search for "moon god" and came up with this:
Khons (or Khonsu)
He was the Egyptian god of the moon.
I figured since you had a cat with an Egyptian name, I'd offer that as a suggestion.
Plus, it's a pretty cool name. 
I was doubtful I'd find anything because often, the moon is associated with goddesses (not gods).
Here's where I found information:
Khons (Egyptian deity) -- Britannica Online Encyclopedia
(I hope you take no offense to my offering the name!)
I meant no offense.
I know it's not my place...but I took the liberty to do a search for "moon god" and came up with this:
Khons (or Khonsu)
He was the Egyptian god of the moon.
I figured since you had a cat with an Egyptian name, I'd offer that as a suggestion.
I was doubtful I'd find anything because often, the moon is associated with goddesses (not gods).
Here's where I found information:
Khons (Egyptian deity) -- Britannica Online Encyclopedia
(I hope you take no offense to my offering the name!)