The average sunspot group on the solar surface will last for about

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The average sunspot group on the solar surface lasts for about two rotations of the Sun. Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas. They are caused by concentrations of magnetic field flux that inhibit convection. The Sun's rotation period varies with latitude, but a typical sunspot group can last around two solar rotations, or approximately 54 days, given that the solar equatorial rotation period is about 27 days.

The Average Sunspot Group on the Solar Surface Will Last