Bibcode
                                    
                            Martínez Pillet, V.; Murdin, P.
    Referencia bibliográfica
                                    "Encyclopedia of Astronomy and Astrophysics, Edited by Paul Murdin, article 2000. Bristol: Institute of Physics Publishing, 2001. http://eaa.iop.org/abstract/0333750888/2000"
Fecha de publicación:
    
                        11
            
                        2000
            
  Número de citas
                                    0
                            Número de citas referidas
                                    0
                            Descripción
                                    A description of the emergence of large concentrations of magnetic
fields (active regions) at the solar surface is presented. The dark
structures known as SUNSPOTS are a consequence of this process....