is something interesting!
The thick smoke is still hanging over the area, and I noticed how even when the Sun is quite dimmed by it, I could still feel the heat on my skin. Smoke works just like air does in scattering shorter wavelengths of light more than longer wavelengths, and the Sun's infrared passes through. So I had the thought to take out my Seek infrared camera and see what the camera would pick out as the Sun vanished. Just like in astronomy when we use infrared wavelengths to penetrate the interstellar dust. I was not surprised to find that it worked, and it was neat to be able to show people the invisible Sun, and its invisible reflection on the water.
But what did
surprise me is that, apparently
, the smoke causes an infrared halo, like ice crystals do! Check this out:
I'm not at all sure that this halo is real and not just an artifact of the camera or sensor. I've never heard of such a thing, and I don't know why smoke particles would do it. I should have thought to check if the halo is still visible if I block the Sun itself, or if just the halo can be blocked. If the smoke is still here tomorrow I'll try some tests to see.
What do you think about it, midtskogen?