Questions tagged [visible-light]

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Is Olbers' Paradox Nonsense? [closed]

Ok, this is a bold question, I know. But, let me explain: After first hearing about Olbers' paradox, I found that something seemed 'off' about it, so I looked into the subject as much as my skills (...
1
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1answer
54 views

Can a star emit a larger fraction of its total light in the visual range than the Sun does

If one sets both the bolometric and visual luminosity of the Sun to 1 (and use a linear scale), can a star then have a higher visual than bolometric luminosity? It makes sense that this will not be ...
5
votes
1answer
70 views

What is the intensity distribution of visible light over the solar disk?

What is the distribution of the visible spectrum over the solar disk? Images of the Sun using the visible spectrum suggest that the light emmitted from the edge is almost equal to the light emmited ...
4
votes
2answers
404 views

Why do I see rainbows around the moon?

Regularly, I see rainbows around the moon. Here is approximately what I see: Right at the edge of the moon, I see a bright blue ring of light. Further out, I see an inner rainbow. This is not as ...
7
votes
1answer
106 views

Are any bow shocks seen in the visible spectrum?

Are any of the images of bow shocks created from visible light, or are they all from infrared light? While I'm including two of the better known images, my question is about any known bow shock. LL ...