Starship Asterisk*

Any idea or guesses what that large expanse of light is on the left middle edge? It is in a lightly populated area. It's larger in area than Chicago though not as bright. It's not Minneapolis/St.P., too far west to be Winnipeg and certainly not Minot N.D. which seems to be nearest. But it's pretty ...

It seems to me that 25,000 light years apart is pretty far for two objects to be considered a binary system, even supermassive black holes. They must be really supermassive.
pj