Q:

How long do sunspots last?

A:

Quick Answer

The duration of sunspots varies greatly as some of them only last hours, while others can last for many months. The longest-lasting known sunspot, which lasted 6 months, was recorded in 1943. Sunspots have an enormous variation in size as well.

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Full Answer

Sunspots are visible as dark patches on the sun's surface, as they are areas with lower temperature, around 4000 C, and the surface temperature of the sun is around 6000 C. The amount of visible sunspots follows a 11-year cycle. In modern times, the cyclic period of sunspots has been consistent. However, hardly any sunspots were seen from about 1645 to 1715.

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    How do sunspots form?

    A:

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    How do sunspots affect the Earth?

    A:

    Sunspots do not have any effect on the Earth in any significant way. If the sun was covered in sunspots, it could result in less light reaching Earth, but not enough to have any negative effect or even be noticed. However, magnetic anomalies associated with sunspots such as solar prominences, solar flares and coronal mass injections can eject energy particles that may affect power plants on Earth or satellites in orbit above Earth.

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    A:

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