Good question.
The hypothesis (which is probably not that realistic) was a solar system isolated somewhere in the middle of the void, with a couple hundred million light years to the nearest major celestial groups. I suspect that would be beyond visual range, but it's hard to say.
Again, the more realistic view is that this "void" is only a void by comparison to most of the rest of the universe, and I'm sure there's a few tens of thousands of stars scattered thinly through it. Odds are almost 100 percent that if you have one star in this gap, there will be at least one other within seeing distance.