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I would like to find some basic facts about our sun's core to learn about it but can't find any websotes where it's easy stuff .

what do you know about the sun's core?

2007-03-22 18:36:52 · 13 answers · asked by Planet22 2 in Science & Mathematics Astronomy & Space

13 answers

i will fly to the suns core and back
then i'll tell you all about it

2007-03-22 18:40:26 · answer #1 · answered by mikedrazenhero 5 · 1 3

I hope this helps
The core is the source of all the Sun's energy. Fortunately for life on earth, the Sun's energy output is just about constant so we do not see much change in its brightness or the heat it gives off. The Sun's core has a very high temperature, more than 15 million degrees Kelvin, and the material in the core is very tightly packed or dense. It is a combination of these two properties that creates an environment just right for nuclear reactions to occur.In the core of a star the intense heat destroys the internal structure of an atom and consequently all atoms are broken down into their constituent parts. An atom is constructed of protons, electrons and neutrons. Neutrons have no electric charge and therefore do not interact much with the surrounding medium. As a result neutrons leave the core fairly quickly. The protons, which have positive electric charge, and the electrons, which have negative electric charge, remain in the core and drive the reactions which fuel the Sun. The charge neutral material of protons and electrons that makes up the core is called plasma. The high temperature provides the protons and electrons with a large amount of thermal energy and as a result they move around quite quickly. This motion, combined with the high density of the plasma, causes the particles to continuously slam into one another creating nuclear reactions. It is the fusion, or slamming together, of particular combinations of particles that provides the energy source of the Sun.

2007-03-22 18:41:32 · answer #2 · answered by Anonymous · 0 0

The Sun's core is at a temperature of over 10 million degrees Celsius (over 18 million degrees Fahrenheit). It is at the core that nuclear fusion takes place; this process is what powers the Sun. In this process, hydrogen is turned into helium.

2007-03-26 09:32:10 · answer #3 · answered by Tenebra98 3 · 0 0

What do I know about the Sun's core?! Go ask a minister/ priest/ preacher/ father / theologian... or just ask the same question under Religion. No man's ever been there, but it's a safe bet that it is immeasurably hot. Off the scale. File under: inferno. Too hot for you, dude. Non-stop Hot Action!! Hotter 'n fire! You could more than fry an egg on it. A real scorcher. A virtual heatwave, get it? But the Number One basic fact about the Sun's core is: It's Hotter Than Hell!!
I hope this helps...

2007-03-29 12:13:33 · answer #4 · answered by Kentucky Dave 6 · 0 1

As the sun gets older denser and denser end-products of fusion appear...helium, iron, etc. The core temperature is 13.6 million degrees Kelvin. The density of the core is 150 times the density of water on earth.

The rate of nuclear fusion depends strongly on density (and extremely strongly on temperature), so the fusion rate in the core is in a self-correcting equilibrium: a slightly higher rate of fusion would cause the core to heat up more and expand slightly against the weight of the outer layers, reducing the fusion rate and correcting the perturbation; and a slightly lower rate would cause the core to cool and shrink slightly, increasing the fusion rate and again reverting it to its present level.

The diameter of the core is 1/5 the diameter of the sun.

2007-03-22 18:55:33 · answer #5 · answered by misoma5 7 · 0 0

A mixture of hydrogen and helium, at a temperature of about 15,000,000 K, and very high pressure from the sun's gravity. This temperature is high enough to cause hydrogen to slowly fuse into helium, with the emission of some neutrinos and a lot of energy. This process has continued for over 4 billion years, and is expected to continue for 5 billion more.

2007-03-22 18:43:14 · answer #6 · answered by Anonymous · 0 0

Temperature - At least 10-million degrees Kelvin

About 4,629 metric tons of hydrogen converted to helium every SECOND.

Core Size - 248,560 miles in diameter

Core Density - 160 grams per cubic centimeter (..10 times the density of lead..)

2007-03-22 19:31:09 · answer #7 · answered by Chug-a-Lug 7 · 0 0

i m telling u in short for convenience
temp of sun's core is about 15 million C.it is one of the hottest parts of the sun.it is surrounded by a radiative zone of about 380000 km thick. which is surrounded by convective zone which is about 140000 km thick.in the sun's core hydrogen is converted to helium by nuclear fusion,releasing energy .in process the energy travels from radiative zone to convective zone to the photosphere,where it leaves the sun in the form of heat and light .
thanks for asking this Ques

2007-03-22 18:47:26 · answer #8 · answered by Anonymous · 0 0

We didn't know that much about it until we listened.

What we found was that its like a bomb.

Atoms are flying around for millions of years and released as gama rays once it reaches the surface.

Look at nasa.com.

2007-03-22 18:41:01 · answer #9 · answered by Jim M 2 · 0 1

i know that it's all made up of..i think nitrogen or something that starts with an N and it'll burn for millions of years to come, and when it starts to run low, it'll turn into a red gaint i think, and then it'd be a white dwarf using the LITTLE nitro left.

2007-03-22 19:04:47 · answer #10 · answered by pimp_knuckles 3 · 0 1

The core of the Sun is considered to extend from the center to about 0.2 solar radii. It has a density of up to 150,000 kg/m3 (150 times the density of water on Earth) and a temperature of close to 13,600,000 kelvins (by contrast, the surface of the Sun is close to 5,785 kelvins (1/2350th of the core)). Through most of the Sun's life, energy is produced by nuclear fusion through a series of steps called the p-p (proton-proton) chain; this process converts hydrogen into helium. The core is the only location in the Sun that produces an appreciable amount of heat via fusion: the rest of the star is heated by energy that is transferred outward from the core. All of the energy produced by fusion in the core must travel through many successive layers to the solar photosphere before it escapes into space as sunlight or kinetic energy of particles.

About 3.4×1038 protons (hydrogen nuclei) are converted into helium nuclei every second (out of about ~8.9×1056 total amount of free protons in Sun), releasing energy at the matter-energy conversion rate of 4.26 million tonnes per second, 383 yottawatts (383×1024 W) or 9.15×1010 megatons of TNT per second. This corresponds to extremely low rate of energy production in the Sun's core - about 0.3 μW/cm³, or about 6 μW/kg. For comparison, ordinary candela produces heat at the rate 1 W/cm³, and human body - at the rate 1.2 W/kg. Use of plasma with similar parameters as solar interior plasma for energy production on Earth is completely impractical - as even modest 1 GW fusion power plant would require about 170 billion tonnes of plasma occupying almost one cubic mile.

The rate of nuclear fusion depends strongly on density (and extremely strongly on temperature), so the fusion rate in the core is in a self-correcting equilibrium: a slightly higher rate of fusion would cause the core to heat up more and expand slightly against the weight of the outer layers, reducing the fusion rate and correcting the perturbation; and a slightly lower rate would cause the core to cool and shrink slightly, increasing the fusion rate and again reverting it to its present level.

The high-energy photons (gamma and X-rays) released in fusion reactions are absorbed in only few millimeters of solar plasma and then re-emitted again in random direction (and at slightly lower energy) - so it takes a long time for radiation to reach the Sun's surface. Estimates of the "photon travel time" range from as much as 50 million years[8] to as little as 17,000 years.[9] After a final trip through the convective outer layer to the transparent "surface" of the photosphere, the photons escape as visible light. Each gamma ray in the Sun's core is converted into several million visible light photons before escaping into space. Neutrinos are also released by the fusion reactions in the core, but unlike photons they very rarely interact with matter, so almost all are able to escape the Sun immediately. For many years measurements of the number of neutrinos produced in the Sun were much lower than theories predicted, a problem which was recently resolved through a better understanding of the effects of neutrino oscillation

2007-03-22 19:42:19 · answer #11 · answered by Anonymous · 0 0

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