Sun

https://physics.stackexchange.com › questions › why-does-sun-appear-…
The Sun appears white at noon because the sunlight reaching the observer maintains its full spectral composition meaning that all visible wavelengths arrive in nearly

https://physics.stackexchange.com › questions
I want to know how much lux the sun emits on a bright day I don t mean when one stares directly at the sun but rather when one walks casually outside when the sun is shinning brightly Now the

https://physics.stackexchange.com › questions
The sun will last at its current brightness for 9 billion more years How long until the sun gets burned down to the point where it cannot sustain life on Earth anymore Updated I am more

https://physics.stackexchange.com › questions
1 The sun seems brighter more dazzling if there is more scattering in the atmosphere The sun would actually look very small to us in the sky if there were no atmosphere it s the same

https://physics.stackexchange.com › questions
First we should speak of acceleration rather than force because like I said earlier all objects at a given distance from the Sun experience different forces but the same

https://physics.stackexchange.com › questions › nuclear-fission-in-the-sun
The Sun s energy comes primarily from fusion of light elements in its core It is estimated that a very small fraction of mass of the Sun 10 12 times the abundance of hydrogen is

https://physics.stackexchange.com › questions
The sun s spectrum is very complex and indeed there are a lot of lines both light and dark emission and absorption amidst a sea of what looks to be continuous frequencies

https://physics.stackexchange.com › questions
The Sun does not rise it is the horizon that goes down You say that Sun rises in the East with a certain degree of oscillations due to the tilt of the axis just because the Earth

https://physics.stackexchange.com › questions › why-is-the-sun-s-emiss…
The Sun emits more at 450 600 rm nm than a black body of the same effective temperature would it also emits far less UV I ve heard this is due in part to the fact