Why are sunspots cooler than the surrounding surface of the sun?

Chester Walter asked a question: Why are sunspots cooler than the surrounding surface of the sun?
Asked By: Chester Walter
Date created: Thu, Mar 4, 2021 4:20 PM

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FAQ

Those who are looking for an answer to the question «Why are sunspots cooler than the surrounding surface of the sun?» often ask the following questions:

❗ Sunspots are cooler than the surrounding solar surface?

  • Sunspots appear as dark patches in the solar photosphere . These are areas where strong magnetic field has emerged from below the solar surface. The strong magnetic field suppresses the release of heat into the photosphere making sunspots cooler than their surroundings.

❗ Why are sunspots cooler than the surrounding solar surface areas?

  • However, since we are talking about the Sun, cooler means 3800K (6380℉) instead of 5800K (9980℉) Sunspots are cooler because the local magnetic field suppresses convection and prevents heat inside the sun from rising toward the surface. The magnetic field also exerts pressure, which keeps warmer gas away from the area.

❗ What are sunspots cooler than the surrounding areas?

  • Sunspots appear dark to us because they're cooler than the surrounding areas on the sun's visible surface, or photosphere , which has a temperature of about 10,000 degrees Fahrenheit (5,537.8 degrees Celsius ). The dark interior of a sunspot, called the umbra, is about 1,600 degrees cooler than the rest of the sun's surface.

1 other answer

they have strong magnetic activity.

Your Answer

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