This is pretty much true. You could replace our sun with a black hole of the same mass, and nothing would change in terms of planet's orbits. The image of a bl

This is pretty much true. You could replace our sun with a black hole of the same mass, and nothing would change in terms of planet's orbits. The image of a black hole "sucking" things in like a vacuum cleaner is hugely incorrect. I think this perception comes about from the funnel image we often see representing black holes.