Plages are highly dense regions that surround these objects that are contrasted with faculae. Theseobjects are composed of the umbra and lighter penumbra. Wilson measured an increase in the appearanceof these objects since the previous 11-year Schwabe cycle. Dalton, Sporer, and Maunder all nameminimums in the activity of these objects that coincided with the Little Ice Age. Light emitted from theseobjects indicates Zeeman splitting of the spectral lines. Prominences and 
Plages are highly dense regions that surround these objects that are contrasted with faculae. Theseobjects are composed of the umbra and lighter penumbra. Wilson measured an increase in the appearanceof these objects since the previous 11-year Schwabe cycle. Dalton, Sporer, and Maunder all nameminimums in the activity of these objects that coincided with the Little Ice Age. Light emitted from theseobjects indicates Zeeman splitting of the spectral lines. Prominences and flares occur in regions with highactivity levels for these objects that are created in pairs by the magnetic field. For 10 points, name theserelatively dark regions on the sun.
Plages are highly dense regions that surround these objects that are contrasted with faculae.
sunspots