The core temperature of the sun is on the order of 15 million degrees kelvin while its surface temperature is around 6000k. How long until the sun gets burned down to the point where it cannot sustain life on earth anymore? What are the main factors which determine the.
Long story short, my brother made a joke about how stupid it is to celebrate the earth making one trip around the sun: The sun's energy comes primarily from fusion of light elements in its core. 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.
So i got curious and was wondering:. 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). 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. 1) the sun seems brighter (more dazzling) if there is more scattering in the atmosphere.
The sun will last, at its current brightness for 9 billion more years. The sun would actually look very small to us in the sky if there were no atmosphere (it's the same.