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exponent137
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Is it possible to built a camera which filters blue light of the sky at the day, so that the stars can be visible?
Ken G said:There's a sci fi story for you-- imagine a planet in perpetual daylight, with no other planets or moons visible, but with high-resolution cameras comes the serendipitous discovery of stars. What a momentous scientific discovery that would be!
Ken G said:There's a sci fi story for you-- imagine a planet in perpetual daylight, with no other planets or moons visible, but with high-resolution cameras comes the serendipitous discovery of stars. What a momentous scientific discovery that would be!
http://www.livescience.com/34335-see-stars-daytime.htmlUnfortunately for well-wishers, most of these illustrious figures relied on second-hand accounts and never tried the experiments themselves. Had they done so, they might have found what German naturalist Alexander von Humboldt and his students did when they tested the idea on a 230-foot chimney with a 16-foot opening. To improve their chances of success, they searched for a specific celestial object — Vega, the fifth brightest star in the night sky — that was scheduled to pass almost directly overhead. They failed to see anything, even with binoculars.
A.G. Smith, who later took measurements with a photometer and photometric densitometer — which measure the brightness and transmission of light, respectively — found that the luminance and color of the sky was the same inside a chimney as outside. In other worlds, the chances of seeing stars from the bottom of a well, or any other long tube, are no better than the odds of seeing them in your backyard. So much for the well of knowledge.
We are able to see stars during the daytime because they are always present in the sky, even when the sun is shining. However, the brightness of the sun's light makes it difficult for our eyes to perceive the stars. During certain times of the day, such as dawn or dusk, the sunlight is not as bright, allowing us to see the stars more clearly.
Although the sun is significantly brighter than stars, our eyes are capable of adjusting to different levels of light. This is known as our "dynamic range." During the daytime, our eyes adjust to the brightness of the sun, making it difficult to see the stars. But during dawn or dusk, our eyes are able to adjust to the lower levels of light, allowing us to see the stars more easily.
Yes, it is possible to see stars during the daytime in all locations. However, the visibility of stars during the daytime may vary depending on factors such as the time of day, weather conditions, and light pollution. In areas with heavy light pollution, it may be more difficult to see stars during the daytime than in areas with less light pollution.
Yes, we can see stars during the daytime with the naked eye. However, it may be more difficult to perceive them due to the brightness of the sun. Using a telescope or binoculars can help make the stars more visible during the daytime.
There are no specific stars that are easier to see during the daytime. However, brighter stars and planets may be more visible during the daytime compared to fainter stars. The position of the stars in the sky also plays a role in their visibility during the daytime. Stars located near the sun's position in the sky will be more difficult to see, while stars located in other parts of the sky may be easier to spot.