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The Sun

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Robert Nelson

on 27 November 2017

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Transcript of The Sun

photo credit Nasa / Goddard Space Flight Center / Reto Stöckli
The Sun
Size of the Sun
The Sun is hot!
The sun is made up of six parts
Solar Mass Ejections
The sun's diameter is 1,390,000km.
The sun contains 99.8% of all the
mass of the solar system.
109 Earths could fit across the sun's face
The sun is 5800K at
the photosphere (surface)
However, at the core (the center),
the sun is 15,600,000K!
The sun shines through the process
of fusion. Fusion is the process
of joining two hydrogen atoms
into a helium atom.
The Core
Center part of the sun
This is where fusion occurs
Made of 93% hydrogen and 7% Helium
The Radiative Zone
Energy from the core radiates out
The energy bounce around in this zone for a long time (50 million years).
The Convection Zone
More energy is absorbed
than is released.
This causes heating and cooling.
Hot gases rise, cool gases sink
The Photosphere
The "surface" of the sun.
Made of 73.5% Hydrogen, 25% Helium, and 1.5% Carbon and Oxygen.
It is 5800K and gives the sun its color
Cooler regions of the photosphere.
Caused by twisted magnetic fields
May cause radio interference on Earth
The Chromosphere
Red in color and can only be seen during a total solar eclipse.
Has spikes of gas called Spicules.
Solar Corona
Up to 2,000,000K
Beyond the photosphere.
Source of solar winds.
Seen during solar eclipses
Occasionally, the sun will have eruptions.
These eruptions spew out massive amounts of solar material.
This includes radiation.
Full transcript