Download The Sun

The
Sun
The center of our solar system
Facts about the Sun
• 93 million miles away from earth
• 7.25 degree tilt
• 4.6 Billion years old
• It takes 25 days to rotate around its axis (1
day on Sun=25 earth days)
• http://m.youtube.com/watch?v=D2PtPoloR1g
The Sun
• The Sun is the ONLY star in
the solar system and is the
center of our universe
• A star is very big and
produces its own heat and
light while a planet shines
from reflected light
• The Sun is the solar system
and it accounts for 99.8% of
its mass
• One million earths would fit
inside it
What is it made of?
• Like all stars, the Sun is a
giant ball of gas
• It is held together and
squeezed by its own gravity
• 98% of the Sun is made of
hydrogen and helium
What
makes
it
so
hot?
• The Sun is over 15 million degrees
Celsius at the core at 6,000 degrees
at surface
• It is hot because of it contains a lot of
mass
• So much matter is pushing to the
center of the Sun and this is what
causes so much heat
• It is a billion billion billion toms of
mostly hydrogen gas. If you had that
much weight in bananas the same
amount of heat would occur
Why doesn't the Sun
cool off?
• The Sun is continually losing heat
into space but it does not cool
down like a fire
• The Sun gets it heat (energy) by a
process called nuclear energy
• It takes more than 30,000 years for
this energy to go from center of the
sun to its surface and only 8
minutes until it reaches earth
• Early predictions said that the Sun
has 5,000 years left until it burns
out but it really has 5 billion
Solar Wind
• Solar wind is a million-mile-an-hour hurricane
that blows from the Sun and past its planets
• Happens when there is an explosion on the
Sun
• It takes about 4 days to cross space and reach
us
• We see small effects of solar winds because
our earth has a strong magnetic field that
protects us
Super hot gases stream away from the Sun
The Sun in Religions