If there were an observer on a planet in the centre of a ring galaxy (omitting the galactic core) what could they expect to see in their night sky? I am currently under the impression that their night sky would be divided by a dense band of stars stretching across the celestial sphere, similar to the milky band of our sky - though to a greater extent. But is there any reason this wouldn't be the case?
It would perhaps be less impressive than you imagine, and not much different from how any spiral galaxy would look from near the centre.
The many stars near the centre would mean that there were lots of foreground stars and dust near the centre would obscure parts of the ring. The stars of the bulge would mean the whole sky was filled with star fields.
The ring itself would be distant and so quite dim, it would look like a "milky way", but without a central bulge. So it might look something like the milky way in Auriga. Nice, but not especially dramatic.