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The Sun

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by

nicholas hadfield

on 16 November 2018

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Transcript of The Sun

Mass:
333 000 Earths
The Sun is powered by: Fusion
The sun is
not really
burning.
It takes 8 minutes for light from the sun to reach the Earth
The Sun contains
99%
of all the mass in the Solar System!
Named After:
German: Sonne

The Ancient Greeks thought the Sun was a chariot driven across the sky by Apollo.
Outer Layers:
Corona
: an aura of plasma that surrounds the sun and other stars.
extends millions of kilometers into space

Heliosphere:
is the bubble-like region of space dominated by the Sun, which extends far beyond the orbit of Pluto.
What Colour is the Sun?
Our eyes only see a few colours (r,o,y,g,b,i,v)

When we see the sun through the Earth's atmosphere it appears yellowish.

Above the atmosphere the sun appears white.
Inner Layer:
Chromosphere:


Where fusion takes place, and matter is converted into energy.
Temperature
Max temp:
20 000 000 °C
Object name:
Sun
The Sun
Circumference:
4 700 000 km
Size compared to Earth
:
1 000 000 times as big
Min temp:
4 000 °C
Visits:
Pioneer 5,6,7,8,9
Helios 1,2
Solar Maximum Mission
Yohkoh
Ulysses (from above)
Helios
Solar Maximum Mission
Ulysses
Satellites:
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
20 000 000 °C
4 000 °C
http://www.1728.org/einstein.htm
http://archive.boston.com/bigpicture/2008/10/the_sun.html

The Sun is not a big ball of burning gas, but instead an
enormous sphere of plasma
.
Full transcript