According to this answer there is a scale of super moons depending on how close the full moon(henceforth anti-sol) is to perigee. So how close to anti-sol does the moon's perigee need to be to be referred to as a "super moon"?
Asked
Active
Viewed 67 times
1
-
https://en.wikipedia.org/wiki/Supermoon#Terminology explains the term isn't well-defined among astronomers, and is actually astrological in origin. Of course, I didn't check the sources and wikipedia can always be wrong :) – Nov 18 '16 at 17:07