Layers of the Sun

• No clear boundaries• Core 1. Definition 2. Highest temperatures 3. Nuclear fusion

Layers of the Sun (cont.)• Photosphere• Chromosphere• Corona 1. Largest layer 2. Low density

Activity on the Sun

• Sunspots 1. Definition 2. Cooler temperatures 3. Not permanent

Activity on the Sun (cont.)

• Prominences 1. Definition 2. Height

Activity on the Sun (cont.)

• Solar flares 1. Definition 2. Bright bursts of light 3. Light energy 4. Ozone layer

Solar Wind• Definition 1. Cosmic rays 2. Charged particles• Coronal Mass Ejections (CMEs) 1. Definition 2. Occurance 3. Solar flares

Microscopic holes made by high energy particles in an Apollo 12 helmet.   The helmet material has been etched to reveal the holes as spikes.

Solar Wind (cont.)• Magnetosphere 1. Protection 2. Distortion 3. Auroras 4. Strong CME