Facts about the

sunSun Cycle

Layers of the sun

Sun’s Energy

Terms 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

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Inward pressure of gravity

The outward pressure of hot gas in the sun is balanced by

$1000The 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?

$800The 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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Describe the future of our Sun?

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.

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Corona and chromosphere

What layers are visible only during an eclipse?

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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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Radiative zone, convective zone and chromosphere is the order of the sun’s layers from the inside out or outside in?

Inside to outside

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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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Identifying lines in the Solar Spectrum are called

_________________ names after the man who first

discovered them.

Fraunhofer lines

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Solar Constant

The measure of energy received by the sun at a

location on Earth is called the

$800Solar storms

Particles sent from the sun through interplanetary spaces to planets can cause

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Our earth’s Magnetosphere

protects our planet from most

particles the sun emits

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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.

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Clouds of gases (from the chromosphere) rise and orient themselves along the

magnetic lines from sunspot pairs. The arches are called prominences.

.Describe prominences.