So there's no possible way? How do we know if it is not possible? Humans are just now getting to know the Universe fundamentally. Also how do we know about Sirius system so well if we haven't been there. I love astronomy but I will admit there is always something new to discover and challenge our beliefs of our Universe
Sirius A and Sirius B would have the necessary gravity to span 8 light years. Also Sirius has been the target of great attention from ancient humans going so far as building objects that are always lined up with Sirius.
Mine was when one of the launch clamps didn't separate when the rest did. when i staged it on the second stage icon above the engine and clamps my rocket was going at an angle. I started to lose it so i activated the launch escape system and got the command pod safely away. That staging mishap cost me a good rocket.
There is a mathematical object that could be better. The Milky Way black hole could have a opposite white hole somewhere. Remember a white hole is the opposite of a black hole, spitting out matter instead of sucking matter in.