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Stars fuse Hydrogen into heavier elements (main sequence stars fuse hydrogen into helium).
If you were to weigh the mass of the hydrogen before the fusion process and the mass of the helium which is the result of the helium process then you would find the the helium has less mass than the hydrogen.
This lost mass is converted into energy (heat and light) in the core of the star in line with Einstein's famous equation E-MC2, where E= the energy that comes out and M= the mass lost and C2 is the speed of light in a vacuum (299,792,458 metres per second,) multiplied by itself.
Our sun loses mass a the rate of 4.26 million metric tons per second so if you multiply this by C2 you can see just how much energy the sun is producing each second. (384.6 yotta watts (3.846×1026
W), or 9.192×1010 megatons of TNT per second).
What else can I help you with?
Why the sun a star but the moon is not?
A star is an object that radiates its own heat and light. A typical star is a superheated ball of hydrogen and helium that releases energy through nuclear fusion. The moon is much smaller and less massive than any star and is mostly made of rock. It does not produce its own light, but simply reflects light from the sun.
Source of heat and light energy produced by stars?
Stars produce heat and light energy through nuclear fusion in their cores. The intense heat and pressure within a star cause hydrogen atoms to fuse together to form helium, releasing energy in the form of light and heat. This process is what powers the star and allows it to radiate heat and light into space.
Is a star a hot planet?
No, it is not. Stars are kept at very high temperatures by nuclear fusion, which only happens to bodies of high masses. The planet Jupiter is a body that was close to becoming a star, but was too small and did not.
Is a star a source of light energy?
Yes, a star is a source of light energy. Stars produce light and heat through nuclear fusion reactions that occur in their cores. This light energy is emitted in the form of electromagnetic radiation, including visible light.
Are stars holes in the sky?
No. Stars are massive balls of hydrogen and helium that produce heat and light through nuclear fusion. Our sun is a star, only appearing bigger and brighter because it is much closer to us.
Why the sun a star but the moon is not?
A star is an object that radiates its own heat and light. A typical star is a superheated ball of hydrogen and helium that releases energy through nuclear fusion. The moon is much smaller and less massive than any star and is mostly made of rock. It does not produce its own light, but simply reflects light from the sun.
Why does a star produce its own heat n light?
Because it is creating energy from the fusion of hydrogen and helium in its core.
Source of heat and light energy produced by stars?
Stars produce heat and light energy through nuclear fusion in their cores. The intense heat and pressure within a star cause hydrogen atoms to fuse together to form helium, releasing energy in the form of light and heat. This process is what powers the star and allows it to radiate heat and light into space.
A gas at the core of an older star?
A star near the end of its life that gives of lots of light but not that much heat
Is a star a hot planet?
No, it is not. Stars are kept at very high temperatures by nuclear fusion, which only happens to bodies of high masses. The planet Jupiter is a body that was close to becoming a star, but was too small and did not.
What is the name of the star that supplies light and heat?
Any star . The star that supplies heat and light to us is our very own Sun.
How does a star work to produce light and energy?
Stars produce light and energy through a process called nuclear fusion. In the core of a star, hydrogen atoms combine to form helium, releasing a large amount of energy in the form of light and heat. This energy is what makes stars shine brightly in the sky.
Why is the sun the only star which gives much heat and light to the atmosphere?
i dont know :S
What is the difference between the sun and a big gas planet?
The sun is a star that undergoes nuclear fusion to produce energy, while a gas planet is a large planet primarily made up of gases like hydrogen and helium. The sun emits light and heat due to nuclear reactions in its core, while gas planets do not produce their own light and heat but reflect light from their star.
Is a star a source of light energy?
Yes, a star is a source of light energy. Stars produce light and heat through nuclear fusion reactions that occur in their cores. This light energy is emitted in the form of electromagnetic radiation, including visible light.
What is hotter planets or stars?
Stars are hotter than planets. Stars are massive balls of gas that produce heat and light through nuclear reactions in their cores, while planets do not produce their own heat and rely on the heat they receive from the star they orbit.
Are stars holes in the sky?
No. Stars are massive balls of hydrogen and helium that produce heat and light through nuclear fusion. Our sun is a star, only appearing bigger and brighter because it is much closer to us.
