3 ms·
Fall-off of light intensity does not factor in: while the amount of light reaching an observer from any given star does indeed fall off with the square of the d
by colanderman 6y ago
Fall-off of light intensity does not factor in: while the amount of light reaching an observer from any given star does indeed fall off with the square of the distance, so does the apparent size of that star; its apparent surface brightness thus does not change with distance. (Think of day-to-day experience: people who walk away from you do not darken!)
I agree that countability vs. uncountability seems like it should come into play.
- pontus 6y agoGreat point, thanks! Makes perfect sense. Turns out though that the intensity actually falls off faster than 1/r^2 toward the end due to quantization effects. Feels silly to include quantization, but I guess when were talking about stars that may be arbitrarily far away this would need to be part of the story.
- pdonis 6y ago> Turns out though that the intensity actually falls off faster than 1/r^2 toward the end due to quantization effects. No, it doesn't. See my other post in response to you upthread.