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The Sun Notes

The Sun Notes. I. The Sun:. center of solar system closest star to Earth we depend on sun for energy made by fusing hydrogen to make helium in its core. II. The Sun’s Atmosphere:. Photosphere - inner layer which gives off light 6,000K called “light layer”.

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The Sun Notes

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  1. The Sun Notes

  2. I. The Sun: • center of solar system • closest star to Earth • we depend on sun for energy made by fusing hydrogen to make helium in its core

  3. II. The Sun’s Atmosphere: • Photosphere- • inner layer which gives off light • 6,000K • called “light layer”. • layer we see when looking at a photograph

  4. Chromosphere- • above the photosphere • middle layer • called “color layer” • ”

  5. Corona • largest layer of sun • extends out in space for millions of km • temperatures up to 2 million K • sends charged particles through space called solar wind. This solar wind can cause rippled sheets of light in the sky at the poles of the Earth called auroras. • “crown” b/c a white halo is seen during a solar eclipse.

  6. Surface Features of the Sun • Sunspots • areas of gas on the sun that cooler than the areas around them. • 1. b/c they are cooler doesn’t make as much light=darker • 2. could be responsible for warmer temperatures during years of decreased sunspots.

  7. Prominences- • loops of gas that link pairs or groups of sunspots. • can be seen using special tools during a solar eclipse.

  8. Solar Flares- • when multiple loops connect and create a massive explosion of energy into space. • can increase solar wind • increased particles released disrupt magnetic fields and can affect radio, telephone, and TV signals

  9. Coronal Mass Ejections- • large amounts of electrically charged gas released from corona can damage satellites and interfere with radio and power equipment.

  10. DID YOU KNOW: • Sun’s gravity is the most powerful force in the solar system because the sun makes up 99.8% of the solar system’s mass.

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