Object name: NGC6934
NGC 6934 is a rather distant globular cluster in Delphinus about 50,000 light-years from us and 42,000 light-years from the core of the galaxy so it is near the edge if the old 100,000 light-year diameter is used. A drizzle of stars have been detected further out making its diameter about 200,000 light-years but if viewed from afar that faint halo would be hard to detect. Many galaxies would appear much larger in super deep images like what would be needed to show our extended disk. So for most purposes, the older diameter seems reasonable though maybe 125,000 would be a better estimate. Hard to tell from the inside looking out.