Sun

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Sun

Leonardo, Armia P. E-28

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• The Sun is a STAR found at the center of the Solar System.

What is SUN?



Made up of

74% 24%

4%



hydrogen nuclei + helium = Nuclear Fusion



• Perfectly spherical• Consist of hot plasma



• At around 1,392,000 kilometers (865,000 miles) wide,

• the Sun’s diameter is about 110 times wider than Earth’s

Add. Info:– the sun’s radius 696,000km

– the Earth’s radius is 6, 376km689,624km



The sun is 150 million km (93 million miles) away from the Earth.



• The sun’s average

surface temperature is5700 Degree Celsius.

• the Earth’s average

temperature is 20 Degree Celsius.



• The Sun’s core is around 13,600,000 degrees Celsius!



How old is the sun?

4.5 billion years



• The sun changes. • They increase and decrease on a regular

cycle of about 10.8 years.



Remember!

The Earth orbits is around the sun



• A solar eclipse occurs when the Moon

is between the Sun and the Earth.


http://www.sciencekids.co.nz/sciencefacts/space/moon.html


Where does the sun came from?

“GOD” the creator of the universe

and all good things.



Why do we need to study about the Sun?

• extremely important for life on Earth• The sun provides us with energy,

which brings life on our planet



• Without the sun life on Earth would not exist.

It would be so cold that no living thing would be able to survive and our planet would be completely frozen.



• Because of the Sun’s huge influence on Earth, many early cultures saw the Sun as a deity or god.



Earth and Sun’s layers



PARTS OF THE SUN Core Radiative Zone Convective Zone Photosphere Chromosphere Corona



Core• Innermost 10% of the Sun’s mass.• It is where the energy from nuclear fusion

is generated.



Radiative Zone• Where energy is transported from

superhot interior to the colder outer layers by photons.

• This also include the core.• Includes the inner approximately 85% of

the Sun’s radius.



Convective Zone• Energy in the outer 15% of the sun’s

radius is transported by the bulk motion of gas in a process called convection.



Photosphere• The Sun’s visible surface.• The bubbling motion of the convection

layers makes the granular patterns we see on the photosphere.



Chromosphere• With huge solar flares and loops of hot

gasses shooting up thousand of miles.



Corona• Can only be seen during total solar

eclipse.



Other features• Sun spot – dark spots of the sun’s surface• Solar flare – outburst of burning gas



Life expectancy of the Sun



The end.

Thank You!


Sun

Education

Transcript of Sun