Near IRSOL there is another solar observatory dedicated to sunspot observations: Specola Solare Ticinese
Istituto ricerche solari Aldo e Cele Daccò, Locarno
Istituto ricerche solari Aldo e Cele Daccò, Locarno
Near IRSOL there is another solar observatory dedicated to sunspot observations: Specola Solare Ticinese