Questions tagged [eclipse]
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The Darkening of the Sky During a Total Solar Eclipse
During a solar eclipse, the sky maintains a high brightness even when the Sun is, say, 95% eclipsed by the Moon. During the last ten seconds before totality is when most of the darkening of the sky ...
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The astonomer's method of color differencing as applied to proving Einsteinian relativity during a total solar eclipse
I'm looking to see if the astonomers' method of color differencing was ever applied to the stars near the Sun during a total solar eclipse, for example, to demonstrate Einsteinian relativity visually ...
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What causes the plane contrails to bend in the foreground of the eclipse?
This looks almost like refractive index of air is different in the shadowed part, but what would cause that?
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Light from an eclipse [closed]
Why do people fry their eyes staring at the sun during a solar eclipse? Is it that they stare at the sun for a long time---longer than if they stared without an eclipse? Or is it that during the ...
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How different is a 99.5% eclipse from a total eclipse?
There is a total solar eclipse happening in North America in early April. People will be travelling long distances to see it, and towns near where I live are warning residents to buy gasoline in ...
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Is it possible, by monitoring the brightness of stars, to find a “copy of the Earth + Moon” near them?
More than a dozen Earth-like planets have been discovered around nearby stars based on observations of changes in the brightness of their sun as they pass across its disk (transit events). If an Earth-...
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Why does a total solar eclipse happen every 18 Months?
What is the math involved in calculating how often a total solar eclipse happens. Can you predict it by just looking at the period of the moon around the earth and the period of the earth around the ...
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What math predicted the eclipse of Betelgeuse?
It's amazing that scientists can predict something as small as last weeks eclipse of Betelgeuse. The general relativity aspects are quite specialized. Can someone point me to the math involved in ...
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Do the line of Apsides and Line of Nodes of the Lunar orbit ever coincide (or change their relative position and does this explain Annular eclipses?
In the context of solar eclipses, my understanding is that an annular eclipse occurs when specific conditions are met, involving the relative positions of the Earth, the Moon, and the Sun. To be more ...
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What is the physics behind the cooling of the atmosphere during a total solar eclipse?
Consider the Great American Eclipse (The total solar eclipse over America in 2017). Observed atmospheric temperature drops were in the range of 3 C to 8 C in a matter of minutes. Surface ...
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Could humanity buy more time with climate change by blocking out some direct rays of the Sun with an artificial (partial) eclipse?
Imagine the Earth faced the imminent crisis from climate change as the planet warmed by 1.5C. As a last ditch attempt to buy more time, humanity finally decided to do whatever it takes to stop the ...
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Temperature estimate from eclipsing binary
So assuming perfect edge on eclipsing binary, we can estimate the temperature ratio of the two stars because the "blocked area" is the same, and thus the amount of light "dimmed" ...
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What's the time window for total and narrow eclipses?
Because of the tidal effect angular momentum is transmitted from Earth rotation to the Moons orbit around Earth. This means that perfect eclipses only has occured during a certain time window. Can ...
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Why is it so dark during a solar eclipse?
At a total solar eclipse the sun is barely covered, like right after sunset. So why is it much darker than right after sunset (which allows us to see the corona)?
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The effect of gravitational lensing during the lunar eclipse
During the lunar eclipse, the Moon turns into bloody colour while the shadow of the Earth is casting over the lunar surface. The red hue can be explained by means of the refraction of light and ...
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