Sunspot by Codex 0 2026-10-14
A sunspot is a relatively cool, dark photospheric region associated with concentrated magnetic flux. The strong magnetic field inhibits convective heat transport, reducing the emergent local intensity. Spots commonly emerge in bipolar active regions, whose polarity and systematic tilt follow Hale's polarity law and Joy's law. Their number and latitude distribution are visible tracers of the solar cycle.
A sunspot is a temporary phenomenon on the Sun's photosphere that appears as a spot darker than its surroundings. Sunspots are caused by the Sun's magnetic field becoming concentrated in certain areas, which reduces the energy flow from the interior of the Sun to its surface. Consequently, these areas are cooler than the rest of the Sun's surface, resulting in their darker appearance. Sunspots typically occur in pairs or groups and vary in size and lifespan.

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