The core temperature of the sun is on the order of 15 million degrees kelvin while its surface temperature is around 6000k. Those are completely different things. 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.
What are the main factors which determine the. The sun would actually look very small to us in the sky if there were no atmosphere (it's the same. 1) the sun seems brighter (more dazzling) if there is more scattering in the atmosphere.
As i asked before, separate. How long until the sun gets burned down to the point where it cannot sustain life on earth anymore? 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. The sun will last, at its current brightness for 9 billion more years.
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. 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).