Glossary

Our Sun

Our solar system is composed of the Sun and all things which orbit around it: the Earth, the other eight planets, asteroids, and comets. The Sun is 150 million kilometers (93 million miles) away from the Earth (this distance varies slightly throughout the year, because the Earth’s orbit is an ellipse and not a perfect circle). LEARN MORE »

Layers of the Sun

• Core
• Radiative Zone
• Convection Zone
• LEARN MORE »

Parts of the Sun’s Atmosphere

• Photosphere
• Chromosphere
• Corona
• LEARN MORE »

Objects on and from the Sun

• Sunspots
• Filaments
• Prominences
• Solar Wind
• Coronal Holes
• Solar Flares
• Coronal Mass Ejections (CMEs)
• Solar Energetic Particles (SEPs)
• LEARN MORE »