Fifty
!!!!!!!!!!!!!!!!!!!!!!!!!
I'm sorry, I don't understand the Latin. I can't even guess at its meaning, due to the context in which it is written. It's kind of difficult to either agree with you or argue with you when I don't understand what you're saying.
Let me just put it this way. You can roughly translate "prima facie" to "on the face of it", and "ultima facie" to "all things considered".
So, for instance, it seems prima facie wrong to let someone die when you could, without risk or effort, save the person. That is, given just that information, assuming everything else is held constant, it seems on the face of it that it is wrong to let someone die under such circumstances. But suppose there is more information: by letting that person die, you can save 100 other people who would otherwise die. It seems like, given this new information, that all-things-considered (or ultima facie), you are not wrong if you do not save the one person, and instead save the 100 people. Your alien case is an example of something that is prima facie wrong (genocide) but ultima facie permissible (genocide to save your species from hostile invaders). The case of the nazis is an example of something that is both prima facie wrong (genocide) and ultima facie wrong (genocide because you dont like jews, or whatever).
To say something is relative is to say that the truth conditions for wrongness ascriptions vary from person to person, or socio-historical context to socio-historical context. So, taking a socio-historical context version of relativism, a nazi speaks truly when he says "genocide of the jews is permissible", and I speak falsely when I say "the nazi genocide of the jews was wrong". A nazi speaks falsely when he says "genocide of the jews here in 2008 would be right", and I speak truly when I say "genocide of the jews here in 2008 would be wrong".
I hope that clears things up a bit.


