May 3, 2020 · It's consensus that the very similar apparent sizes of the Moon and the Sun as seen from Earth is a coincidence (as already answered in this site). This provides us with …

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

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 …

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 …

Feb 15, 2011 · Do you want to know both how the Earth-sun distance is measured and how the speed of light is measured? Those are completely different things. As I asked before, separate …

Nov 26, 2014 · 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 …

Nov 29, 2016 · 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 …

Feb 15, 2017 · If this is the case, then when we read things like what time sun sets and rises on websites, books, calendars, other official times, et al… does that mean when we see for …

Nov 29, 2019 · Can you elaborate on how precession changes how long it takes the Earth to complete an orbit around the sun? I am having a hard time seeing how a wobbly axis could …

Jun 20, 2018 · The core temperature of the sun is on the order of 15 million degrees kelvin while its surface temperature is around 6000k. What are the main factors which determine the …