What are the dark areas on the surface of the Sun quizlet?

What are the dark areas on the surface of the Sun quizlet?

Sunspots are dark areas on the surface of the Sun that are cooler than surrounding areas. They appear in groups, vary in size, and cycle in number over an 11-year period. Solar flares are sudden eruptions of energy from a small area of the Sun’s surface.

What are dark spots on the Sun’s photosphere called?

Sunspots are dark areas in the Sun’s photosphere, which are cooler than their surroundings. They generally appear in pairs or groups, and are associated with very strong magnetic fields.

Which of the following are cool and dark areas of gases within the photosphere of the Sun?

Sunspots
Sunspots are darker, cooler areas on the surface of the sun in a region called the photosphere. The photosphere has a temperature of 5,800 degrees Kelvin. Sunspots have temperatures of about 3,800 degrees K. They look dark only in comparison with the brighter and hotter regions of the photosphere around them.

What is the convection zone of the Sun?

The convection zone is the outer-most layer of the solar interior. It extends from a depth of about 200,000 km right up to the visible surface. At the base of the convection zone the temperature is about 2,000,000° C.

Why is a sunspot dark?

Sunspots are “dark” because they are cooler than their surroundings. Sunspots have a lighter outer section called the penumbra, and a darker central region named the umbra. Sunspots are caused by disturbances in the Sun’s magnetic field welling up to the photosphere, the Sun’s visible “surface”.

Why are sun spots dark quizlet?

Sunspots appear dark because they are “cooler” than the surrounding gas of the photosphere. Sunspots appear dark because they are hotter than the surrounding gas of the photosphere. The Sun’s gravity inward and the force of gas pressure pushing outward.

What causes dark spots on the Sun?

Age spots are caused by overactive pigment cells. Ultraviolet (UV) light speeds up the production of melanin, a natural pigment that gives skin its color. On skin that has had years of sun exposure, age spots appear when melanin becomes clumped or is produced in high concentrations.

What are the dark spots which appear from time to time on the Sun’s surface called Corona prominences solar flares sunspots?

Sunspots are areas that appear dark on the surface of the Sun. They appear dark because they are cooler than other parts of the Sun’s surface. Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots.

What are regions on the solar surface that are cooler and darker than the surrounding photosphere created by magnetic field lines interrupting the convection process called?

Sunspots are regions on the Sun’s photosphere that appear darker than the surrounding areas on the visible solar disk due to reduced surface temperature associated with concentrations of magnetic field flux and intense magnetic activity on the Sun. They usually appear in pairs of opposite magnetic polarity.

How does corona describe the Sun?

The Sun’s corona is the outermost part of the Sun’s atmosphere. Our Sun is surrounded by a jacket of gases called an atmosphere. The corona is the outermost part of the Sun’s atmosphere. The corona is usually hidden by the bright light of the Sun’s surface.