What is the outermost layer of the Sun called quizlet?

What is the outermost layer of the Sun called quizlet?

The sun’s outermost layer is called the corona. The corona, which varies in shape, extends outward several million kilometers. Both the chromosphere and the corona are much hotter than the photosphere.

What is the uppermost layer of the Sun called?

Convective Zone
The uppermost is the Convective Zone . It extends downwards from the bottom of the photosphere to a depth of about 15% of the radius of the Sun. Here the energy is mainly transported upwards by (convection) streams of gas. The Radiative Zone is below the convection zone and extends downwards to the core.

What is the second layer of the Sun from the outside called?

radiative zone
The radiative zone is the second inner layer of the Sun. It sits outside of the core, and it holds its extremely high temperature. The zone itself has a temperature of around 7 million degrees Fahrenheit.

What is the outermost part of the Sun’s atmosphere?

the corona
The outermost part of the Sun’s atmosphere is called the corona. Like the chromosphere, the corona was first observed during total eclipses (Figure 9).

What are the Sun layers?

The inner layers are the Core, Radiative Zone and Convection Zone. The outer layers are the Photosphere, the Chromosphere, the Transition Region and the Corona. IRIS will focus its investigation on the Chromosphere and Transition Region.

What is the outermost layer of Earth?

the crust
The outermost layer, called the crust, is solid, too. Together, these solid parts are called the lithosphere. Earth’s crust is made up of hard rocks. It is the only part of the Earth that humans see.

What is the corona of the Sun?

The corona is the outer atmosphere of the Sun. It extends many thousands of kilometers (miles) above the visible “surface” of the Sun, gradually transforming into the solar wind that flows outward through our solar system. The material in the corona is an extremely hot but very tenuous plasma.

How many outer layers does the Sun have?

three layers
The main part of the Sun has three layers: the core, radiative zone, and convection zone. The Sun’s atmosphere also has three layers: the photosphere, the chromosphere, and the corona.

What happens in the corona layer of the Sun?

The corona is in the outer layer of the Sun’s atmosphere—far from its surface. Yet the corona is hundreds of times hotter than the Sun’s surface. In the corona, the heat bombs explode and release their energy as heat. But astronomers think that this is only one of many ways in which the corona is heated.

What is the outermost system?

Earth’s outermost, rigid, rocky layer is called the crust. Together the uppermost mantle and the crust act mechanically as a single rigid layer, called the lithosphere.

What is called lithosphere?

The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. Oceanic lithosphere is associated with oceanic crust, and is slightly denser than continental lithosphere.

What are sunspots on the Sun?

Sunspots are areas where the magnetic field is about 2,500 times stronger than Earth’s, much higher than anywhere else on the Sun. Because of the strong magnetic field, the magnetic pressure increases while the surrounding atmospheric pressure decreases.