Answer: Photosphere
Some extra relevant information:
Under normal circumstances, the layer of the Sun that we can see with the naked eye is known as the photosphere. The photosphere is the outermost layer of the Sun’s interior, and it is also the layer where the majority of its visible light is emitted.
The photosphere has an average temperature of around 5,500 degrees Celsius (9,932 degrees Fahrenheit) and appears as a bright, glowing disk when observed from Earth. This is the layer that we commonly refer to as the “surface” of the Sun.
However, it is important to note that observing the Sun directly without proper eye protection can be extremely dangerous and can cause permanent damage to the eyes. It is essential to use specialized solar filters or other safe viewing techniques recommended by experts when observing the Sun.
In addition to the photosphere, the Sun consists of several other layers, such as the chromosphere and the corona. These layers are typically not visible to the naked eye due to the brightness of the photosphere. They can only be observed during specific astronomical events, such as a total solar eclipse or with advanced telescopic equipment.
Learning about the different layers of the Sun and understanding the risks involved in direct observation can provide us with valuable insights into the workings of our star and the vastness of the universe.