I think we're quibbling over uniportant issues at the moment. If you believe that black body radiation is a rational expanation for these observed phenomeon, please explain how you know it's not neon that's shining in these videos, and explain the concave flare we see in these pheonomeon, and explain the umbra part of the video. That's all I'm asking. It's one thing to simply throw out a concept. It's another thing to use this concept to explain the exact observations we record. There is a concave shape to the penumbral filaments. Why? There is a definite end to the layer of light of the penumbral filaments. Why? How does black body radation explain these phenomenon specifically and "better" than my model?