Questions tagged [light-pollution]
The light-pollution tag has no usage guidance.
13 questions
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Dust Estimation technique
I'm comparing different coating agents for ammonium sulfate fertilizer granules, coating agent is an additive to limit the dust emission, so I have a new coating agent that is lower cost and more ...
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What light pollution levels are required to see the Milky Way?
I live in a Class-5 night sky on the Bortle Scale, and you cannot see the Milky Way with your naked eye here. I was wondering what Class night sky I would have to be in to see the Milky Way's gas and ...
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Light Filters for Glasses
I am curious whether someone here has knowledge in the light filtering area.
Described in laywoman's terms, this is what I am curious whether it's possible (and how):
Filter out clear daylight and ...
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Star gazing from the bottom of a well
I have read that it is a myth that you can see stars in daylight if you stood at the bottom of a well, however, if you stood at the bottom of a well at night, or built a long non-reflective tube and ...
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What are the conditions for a clean night sky? With plenty stars? [duplicate]
You know.. at some places of Earth, the night sky looks like this: (right?)
However, you might definitely know that, at some other places, the night sky looks like this:
(source: themarkeworld.com)
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Does scanning a lightsource affect the scan result?
I'm very much a layman on this kind of topic, so my logic may be wrong, but here goes:
Sample situation
A 'pass app' on your smartphone, allowing someone to scan your ticket on your device.
My ...
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Why do clouds appear only and only red at night [duplicate]
I have till now in my life I have always seen clouds only white or black or grey in day but in night why they are always red I could never found it's reason. And also sometimes in day time I see ...
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Why do night sky appear red when it is cloudy?
Since childhood, I have seen that whenever at night, the sky is cloudy, the sky becomes red. But, clouds are grayish, so it is expected that the sky becomes more darker. But no, it is not! Why does ...
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Is it possible to block light pollution?
The old theory about seeing stars during the day if you stand i the bottom of a well or chimney is proven wrong because the atmosphere scatters the sunlight and makes it too bright to see the stars ...
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astronomy & light pollution [duplicate]
If you were staring to the sky in a big city and electricity is turned off in a big area around you, would you be seeing the sky with little light pollution instantly?
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Why can I never see any stars in the night sky?
I have always lived near a large city. There is a stark contrast between the picture linked below for example, and what I see with the naked eye.
Sometimes I can see a few stars here and there, but ...
Hassan
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Light pollution calculation using camera
Is it possible to calculate light pollution values using camera (analyzing camera feed) integrated in new smartphones (8 Mpx camera) but with pretty decent accuracy? Or that is only possible with ...
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Does the current light pollution set a fundamental limit for the range of Earth-based telescopes?
As far as I know, all deep-sky pictures are captured with the Hubble Space Telescope.
If there would be no atmospheric distortion, could we make deeper pictures in the optical spectrum with ...
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