Galactic sectors mentioned in Hitchhiker's:
“Galactic Sector ZZ9 Plural Z Alpha is a galactic sector containing Earth, Barnard's Star, and...Sector ZZ9 Plural Z Alpha
“The universe is an unexplainable and complicated place. It's mind-witheringly big, and...Plural zone
“Sector XXXZ5QZX was an area of space, presumably a galactic sector. The Full name of this sector...Sector XXXZ5QZX
“The milky way was a galaxy that had hundreds of seintient species with a population of a 100...Milky Way
“The Outer Eastern Rim has greatly supplanted the Hitchhiker's Guide to the Galaxy instead of...Outer Eastern Rim.