How does the atmosphere effect Auroras

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How does the atmosphere effect Auroras?

• A Interactive Power Point
• By Ryan Miller

Please click on the aurora to advance!
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Photo Gallery
How an Aurora is Caused
Definitinion
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Definitinion

• A natural display of light in the
  sky that can be seen with the
  unaided eye at night.

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Photo Gallery
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How an Aurora is Caused

• The Sun gives off energy and particles (or solar
  wind) which are given off in all directions
• Then these particles are reflected by the Earths
  Magnetosphere, but some follow the magnetosphere
  to the poles
• The Solar wind (or Plasma) mixes with atmospheric
  gases
• Light is produced within the gas-plasma
  mixture

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The History
Location of Auroras
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Odd Facts
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The History

• The name Aurora Borealis was named by a French
  scientist
• He was gazing at the night sky and noticed light
  (from an aurora)
• He named the light after the Roman goddess of
  dawn
• He then added the word borealis which
  means north wind

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Odd Facts
Please select all of the following
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It's not Just us!

• Jupiter Saturn both have auroras
• This is because solar wind reaches there even
  stronger then Earths magnetosphere.

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Solar Fast Wind

• Solar wind reaches Earth with the velocity of
  400 km/s thats 2400km/min.
• solar wind is a stream of charged particles
  (or plasma)
• which are ejected from the upper atmosphere of
  the Sun.

Odd Facts Page
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Auroras in Space

• When astronauts exit the atmosphere they are
  also able to see auroras but, they see them in
  depth over the Earth.
• The way theyre able to see Earths auroras is
  that UV light (light from the sun) illuminates
  the Earths atmosphere
  enough to see them.

Odd Facts Page
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The Sun Causes Aurora Change

• Auroras are caused by the mix of solar wind,
  which is created by solar flares (the more
  flares, the more wind.)

The Solar wind is only able to enter the
atmosphere at the poles, which is where auroras
occur.
Odd Facts Page
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Location of Auroras

• Aurora Borealis
• (northern lights)
• Seen along the northern coast of North America
  and eastern Europe

• Aurora Australis
• (southern lights)
• Occasionally been seen as far north as Australia
  and New Zealand

• Aurora Borealis Aurora Australis
• Occur within 20 of the poles
• The average distance from the Earth is between
  97-1,000 km

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Review Time
Which is the correct definition for an aurora?
Question 1
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Review Time
Where does Aurora Borealis (northern
lights)Occur?
Question 2
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Which Planets have Auroras?
Question 3
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Review Time
How does the sun cause auroras?
Question 4
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Review Time
Solar Wind is what?
Question 5
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Congratulations, You made it! Now enjoy an Aurora
Video

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• www.unitedstreaming.com