Photosphere

The photosphere is the visible surface of the Sun. It is the layer from which the Sun's light is emitted. It is the region of the Sun that is visible to the naked eye and appears to us as the bright disk of the Sun. The photosphere has a temperature of around 5,500 degrees Celsius.

Key Points to Remember:

• The photosphere is the visible surface of the Sun.
• It is the layer from which the Sun's light is emitted.
• The photosphere has a temperature of around 5,500 degrees Celsius.

Study Guide:

1. Structure: Describe the structure of the photosphere and its composition.
2. Temperature: Explain why the photosphere has a temperature of around 5,500 degrees Celsius and how this temperature is measured.
3. Visible Features: Discuss the visible features of the photosphere, such as sunspots and granules, and their significance.
4. Importance: Explain the importance of the photosphere in the context of solar activity and its effects on Earth.
5. Observation: Describe how the photosphere can be observed using telescopes and the precautions that should be taken when observing the Sun.

Further Reading:

For further information on the photosphere, you can refer to astronomy textbooks, scientific journals, and online resources from reputable sources such as NASA and the European Space Agency.

Remember to always use proper eye protection when observing the Sun to prevent damage to your eyes.