NASA actually created an animation simulating what it would look like to fall into a black hole. In short, you’d see the outside universe warped into a circle directly opposite the direction of the singularity, with black all around it. This is ignoring the accretion disk that the other commenter pointed out, although that sits well outside the event horizon and I’m not sure off the top of my head how much of that light escapes inwards towards the black hole versus outwards.
Let’s ignore the pedantic issues of “there is no surface”, “there is no sun to rise” or “you’d be dead so insanely fast you probably wouldn’t notice”. Assuming you were magically teleported and held protected just above the event horizon of a black hole, it would be so bright you’d go blind almost instantly. Not because of any star coming over the horizon, but because the accretion disk would just be that bright. If you look at NASA’s pictures of M87, you aren’t actually seeing the black hole. There’s nothing there to see. Instead, what you are seeing in the pictures is the accretion disk around the black hole. As matter gets closer to the event horizon, it accelerates and all that stuff starts bumping into each other. At the energies involved, this produces electromagnetic radiation of basically every energy. There is infrared right up through x-ray, included lots and lots of visible light. And this is happening on a scale which is so mind mindbogglingly big that words really just fail to capture it. Here is an artistic representation with our solar system for scale. Pluto’s orbit would be well inside the event horizon. There is an insane amount of light and energy in that accretion disk. And thanks to the blackhole warping light around itself, you would be getting bombarded by its energy from every angle, including the disk on the opposite side of the black hole. In short, it would be really bright.
Props for actually trying to break down the question and answer it.
I don’t know, but I think you need to define what you mean by “surface”, as a black hole doesn’t have one. The event horizon?
And also what do you mean by sunrise? Any star orbiting black hole?
Black holes not only don’t have surfaces, they dont have suns.
What’s going on there?
