| − | The photosphere is the visible surface of the Sun; [[sunspot|sunspots]] and [[faculae]] are observed in the photosphere. The photosphere can be observed by amateur astronomers, but this task should be approached with great caution. | + | The '''photosphere''' is the visible surface of the Sun; [[sunspot|sunspots]] and [[faculae]] are observed in the photosphere. The photosphere can be observed by amateur astronomers, but this task should be approached with great caution. |