The Sun is the most prominent feature in our solar system. It is the largest object and contains approximately 98% of the total solar system mass. One hundred and nine Earths would be required to fit across the Sun's disk, and its interior could hold over 1.3 million Earths. The Sun's outer visible layer is called the photosphere and has a temperature of 6,000°C (11,000°F). This layer has a mottled appearance due to the turbulent eruptions of energy at the surface.
Solar energy is created deep within the core of the Sun. It is here that the temperature (15,000,000° C; 27,000,000° F) and pressure (340 billion times Earth's air pressure at sea level) is so intense that nuclear reactions take place. This reaction causes four protons or hydrogen nuclei to fuse together to form one alpha particle or helium nucleus. The alpha particle is about .7 percent less massive than the four protons. The difference in mass is expelled as energy and is carried to the surface of the Sun, through a process known as convection, where it is released as light and heat. Energy generated in the Sun's core takes a million years to reach its surface. Every second 700 million tons of hydrogen are converted into helium ashes. In the process 5 million tons of pure energy is released; therefore, as time goes on the Sun is becoming lighter.
by Castlepaloma 6 years ago
Noah's Arc left behind most people and animalsWas that an Evil or a Good act?My thoughts is Safety first! Automatic I've would of thrown out life jackets or peaces of wood for all of God's creatures to be saved during the flood. If God made everything perfect, why would God have 95% of Land Animals...
by muhammad abdullah javed 4 years ago
What message do you get from Sun's disciplinary acts of rising & setting?
by Sondra Rochelle 8 hours ago
Been waiting for this one! As of 3 hours ago, I just hit 3 million views! Thank you HP and all of you who have helped me along the way. Don't know if my good luck will continue, but this sure feels good!!!
by Rafini 14 months ago
My son thinks so, and now I'm beginning to think it could be true - has this theory already been considered? I mean, it's impossible to know what the sun is really made of...all we know for sure, is that its still burning. It could have a solid mass at its core....I'm thinking that when...
by Edwin Clark 2 years ago
Instead of giving US corporations bailout/loans the government should give each of its citizens $1,000,000 to spend on anything they want within the United States.According to the US Census there are 305 million citizens. $305 million dollar checks going out to people who will spend in the US is a...
by G. Diane Nelson Trotter 22 months ago
Some people say President Obama told illegal aliens they can vote. It is reported that 3,000,000 did just that in California. What about Arizona? What about Florida? How can that happen? The Governor of North Carolina is suspicious about the vote that took him out of...
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