The Wilson effect is explained by assuming that these are hollow. Spörer's law describes the change in the latitude of their formation. They have two regions, an umbra and a p
The Wilson effect is explained by assuming that these are hollow. Spörer's law describes the change in the latitude of their formation. They have two regions, an umbra and a penumbra, and are associated with faculae, luminous hydrogen clouds which seem to precede them. _FOR 10 POINTS_—name these objects, which appear to follow an eleven-year cycle on the solar surface.
The Wilson effect is explained by assuming that these are hollow.
{Sunspot}s