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Solar faculae are bright spots in thephotosphere that form in the canyons betweensolar granules, short-lived convection cells several thousand kilometers across that constantly form and dissipate over timescales of several minutes.
Faculae are produced by concentrations ofmagnetic field lines. Strong concentrations of faculae appear during increasedsolar activity, with or withoutsunspots. Faculae and sunspots contribute noticeably to variations in thesolar constant.Thechromospheric counterpart of a facular region is called aplage.[1][2][3][4]
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