I read from a observer in Sweden he observed from his yard ( class 4 region ) in central Sweden at darkness ( SQM-21.7 ? ) over 20 galaxys over 1 mj LY away.
He was 1.8 on one mj LY at MCG +4-28-97 in Abell 1413 (Leo).
He could not really see it, but almost, as detected mag V~16.6 stars and this was in a China Newton 12".
-I think he seen mag 8 stars in Chile before.
Me, I has not seen a star almost this whole year and I live some hours north from where he observe, and I'm in a class 3 area.
Last time I observed was at LaPalma in December last year, and I had it dark but seeing was very poor and used 25" ( same deal 4 year in a row there )
One Sweden guy is there now at LaPalma and it's been clouds, and he go to top each night.
I always said, Sweden is not for astronomy, but this observer now show how good it can be at a class 4 area.
Amazing.
It might not be a dark area, go high and has big diameter and classy optics !