Wouldn't Sagittarius A* be a supermassive blackhole too? It is estimated at 4.3M at a distance of just 25.000ly give or take. edit: Apperently this is about th

Wouldn't Sagittarius A* be a supermassive blackhole too? It is estimated at 4.3M at a distance of just 25.000ly give or take. edit: Apperently this is about the pair thing...