This is awesome.
It would be cool to see what books talk about each world when you click on them. Also to be able to search for books and see what worlds are talked about in them.
The Latin seems quite wrong... e.g. "segmentum pacificus" should actually be "segmentum pacificum" [1] to keep genders correct. Was it the same in the books (which I don't know)?
[1] see Latin dictionary: https://www.online-latin-dictionary.com/latin-dictionary-fle... and https://www.online-latin-dictionary.com/latin-dictionary-fle...
https://wh40k.lexicanum.com/wiki/High_Gothic