Solar Activities

1. Plages - Bright regions seen in the solar chromosphere.

2. Filaments - Filaments are large regions of very dense, cool gas, held in place by magnetic fields. They usually appear long and thin above the chromosphere.

3. Prominences - A Prominence is an elongated structure full of material hundreds of times cooler and denser than the surrounding corona.

4. Solar flares - Solar flares are huge explosions on the surface of the sun, throwing out massive amount of material as matter is heated to millions of degrees in a few minutes. It can last from minutes to hours.

5. Solar wind - A tenuous flow of gas and energetic charge particles which streams from the sun. 

6. Sunspots

• Sunspots appear as dark spots on the surface of the sun.

• Temperatures in the dark centers of sunspots drop to about 3700 K (compared to 5700 K for the surrounding photosphere).

• Sunspots are magnetic regions on the sun with  magnetic field strengths thousands of times stronger than the Earth’s magnetic field.