The sun would actually look very small to us in the sky if there were no atmosphere (it's the same. 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 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.
How long until the sun gets burned down to the point where it cannot sustain life on earth anymore? The sun's energy comes primarily from fusion of light elements in its core. The core temperature of the sun is on the order of 15 million degrees kelvin while its surface temperature is around 6000k.
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). The sun will last, at its current brightness for 9 billion more years. 1) the sun seems brighter (more dazzling) if there is more scattering in the atmosphere. So i got curious and was wondering:.
On the other hand, if the water were completely still, with a smooth and horizontal surface, then the sun glitter ribbon would be gone, and you would just see a direct mirror. What are the main factors which determine the.