How much lux does the Sun emit? - Physics Stack Exchange
When you look 'at the world' (i.e. to the horizon) on a clear day, unlesss the sun is at a very low angle, the surface of your eye is not illuminated directly by the sun, only reflected sunlight from …
How is distance between sun and earth calculated?
Apr 27, 2015 · Another way of calculating the earth - sun distance is to look at the centrifugal and the gravitational force. This solution assumes that one already knows the mass of the sun, but …
What is the simplest way to prove that Earth orbits the Sun?
Apr 17, 2015 · If we assume the Sun orbits the Earth, the math says that the Sun should be much less massive than the Earth. If we assume the Earth orbits the Sun, the opposite is true. Either …
What would happen if Jupiter collided with the Sun?
Apr 27, 2018 · However, the Sun will accrete $\sim 10^{42}\ \mathrm{kg\ m^2\ s^{-1}}$ of angular momentum, which is comparable to its current angular momentum. The accretion of Jupiter in …
What is actually meant by 'sun set' and 'sun rise' times, when …
Feb 15, 2017 · The Sun has actually set/risen and we see it due to the way light is bent across the atmosphere. Apparently due to coincidence of the size and distance of the sun, its exactly the …
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Equation of Earth's Orbit around Sun (ellipse)
The sun is one of the two foci. For the Earth, the perihelion is 147.1 million km and the aphelion is 152.1 million km. These two distances help identify the location of the sun on the major axis of …
newtonian mechanics - How does the Sun's gravity affect our …
5 days ago · The logic of the answer seems wrong to me as well. It's describing exactly the situation present in tidal forces, but it's coming coming to the wrong conclusion; it is well …
visible light - Is sunlight truly white? - Physics Stack Exchange
Jun 13, 2015 · In fact, helium was first discovered by astronomers observing the sun's corona during a solar eclipse. The low pressure helium in the corona emitted the helium emission …
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