is
So, the Muse does relate to astronomers, but that doesn't guarantee they get the naming right every time as it relates to astrology--that's a decision for astrologers to make for themselves.
I never heard of any Strike made by Astrologers or Astronomers against Urania, at any time. That's why I don't believe the Goddess does respect those categories...
In other words, Astronomy and Astrology are very relative things. Astrology is confused with mythology and any sort of presight; Astronomy is a shy Newtonian physics condemned by Einstein but that deny any sort of meaning for compromises with Kant - it's a Chimera.
Everyone that deals with knowledge, however, is able to follow Uranian paths.