Why is the Sun called an "average star"?
The Sun is decidedly NOT an average star, except that it is on the hydrogen-burning main sequence, where $sim 90$% of stars in the local stellar population are found.
Is the light from the Sun the same as the light from a bulb?
The light from the Sun has a color blip, right where early atomic physics suggested the element with two protons in its nucleus would radiate. That element, called Helium (from Helios,
How long until the sun cannot sustain human life on earth?
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 concer...
What is actually meant by ''sun set'' and ''sun rise'' times, when taking
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 example
What would happen if Jupiter collided with the Sun?
This question is inspired by a similar one asked on Quora. Let''s say a wizard magicked Jupiter into the Sun, with or without high velocity. What happens? The Quora question has two
Solar Panel Mounts
Sunwatts has solar mounts, also known as racks or racking, for every solar panel installation style, allowing you to customize your solar array depending on your
How much lux does the Sun emit?
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
astronomy
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 almost exact total solar
How is Earth protected from the gamma rays generated by the Sun?
The Sun is generating energy by nuclear fusion. This nuclear fusion will emit energy in the form of gamma rays. Normally, the earth''s ozone layer filters the ultraviolet radiation while the earth''s
Is the distance between the Sun and the Earth increasing?
Besides the moon, the sun has a tidal component for the earths oceans, and when that crashes into continents the energy absorbed comes from the potential energy of the sun-earth system. I am not
Why can we see the moon when it is between the Earth and the Sun?
15 If it is really between the earth and the sun it is called a "solar eclipse" and and the moon''s shadow falls on the earth at certain places, because it is not large enough to cover the whole