For the next few weeks, Neptune will be close to the faint, but naked eye (4th mag.) star Phi Aquarii.
In fact, on September 6, the two will be less than 20” apart.
Phi makes a handy guidepost for anyone who’s never before observed the remote corner of the solar system.
Note - The asterism known as the Y of Aquarius is a good guidepost to finding Phi!