Sunspot

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Sunspots are areas seen as a dark spot on the photosphere of the Sun; sunspots are concentrations of magnetic flux, typically occurring in bipolar clusters or groups; they appear dark because they are cooler than the surrounding photosphere.

The opposite of a sunspot is a facula (plural: faculae), a circular to subcircular region which is brighter than the surrounding area.

Sunspots and faculae can be viewed using special solar observation techniques. Anyone attempting to view a sunspot should be careful to observe safety procedures so as to not accidentally do damage to one's eyes.


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