The Gravity of the Black Hole

NGC 1365 has a radius of 360 AU and is spinning at 20% the speed of light. It takes 5 million seconds to complete one spin because it's so big. The faster it spins, the closer you can get to the event horizon without falling in. This black hole could be an overspun black hole that we want to travel to and try to drop some sonar into - or maybe this one will actually get cracked open.