Facts about
the sun
Sun Cycle
Layers of
the sun
Sun’s
Energy
Terms
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Magnetic
field
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Jupiter
The density of the sun is most
similar to what planet?
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71%
The percentage (by mass) of
the sun that is hydrogen is
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About 1 million
Number Earth’s that would fit
inside the sun is
$800
Inward pressure of gravity
The outward pressure of hot gas
in the sun is balanced by
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The sun is not a solid surface
Could you stand on the surface of
the sun? Why or why not?
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Red Giant
What is the next stage of the
sun as it ages?
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11 years in each hemisphere
How long does the sunspot
cycle last?
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White Dwarf
What will the sun eventually
become?
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The solar cycle is the periodic reversal of the sun’s
magnetic field and occurs over a 22 year period.
It equals two sunspot cycles. The north pole
changes to a south pole in 11 years.
What is the solar cycle?
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When all of the Sun's core supply of Hydrogen has been
converted into Helium nuclear fusion will stop, gravity will crush
the core smaller. The pressure and temperature becomes so great
that Helium is converted into Carbon. A red giant is formed as
the star color changes from the expanded gases. When all of the
core supply of Helium is converted into Carbon, nuclear fusion
stops and the core collapses and is now called a White dwarf.
Describe the future of our Sun?
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Corona and chromosphere
What layers are visible only
during an eclipse?
$400
photosphere
The light we normally see
comes from which layer
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Red
What color does the
chromosphere appear during
an eclipse?
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Inside to outside
Radiative zone, convective
zone and chromosphere is the
order of the sun’s layers from
the inside out or outside in?
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It is granulated due to convection currents
What is special about the
appearance of the
photosphere?
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The core
Where does fusion take place?
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The fusion of hydrogen into helium
What is the primary source
of the sun’s energy?
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Radiation and convection
Energy is transported by what
two mechanisms?
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It radiates from the core and convects
through the photosphere
How does energy move
through the sun?
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It will eventually run out of Hydrogen to
fuel the nuclear reaction.
Why will the sun’s energy
change over time?
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Photosphere
The visible outer layer of the
sun
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Fraunhofer lines
Identifying lines in the Solar
Spectrum are called
_________________ names
after the man who first
discovered them.
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Solar Constant
The measure of energy
received by the sun at a
location on Earth is called the
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Solar storms
Particles sent from the sun through
interplanetary spaces to planets can cause
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particles the sun emits
Our earth’s Magnetosphere
protects our planet from most
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Sunspots
These objects come in pairs
and represent the north and
south magnetic fields?
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A prominence
What is a loop of gas following
the magnetic field lines called?
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photosphere
Visible sunspots are in the
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Sunspots always appear in pairs and are
intense magnetic fields that break through
the surface and are cooler than the area
around them. Field lines leave through one
sunspot and re-enter through the other one.
Describe sunspots.
$1000
Clouds of gases (from the chromosphere)
rise and orient themselves along the
magnetic lines from sunspot pairs. The
arches are called prominences.
.
Describe prominences.