Lomography

SUNSPOT BY Jonathan Polkest Scilly Isles Artist

Edward Maunder would later suggest a period over which the Sun had changed modality from a period in which sunspots all but disappeared from the solar surface, followed by the appearance of sunspot cycles starting in 1700.Careful studies revealed the problem not to be a lack of observational data but included references to negative observations.Adding to this understanding of the absence of solar activity cycles were observations of aurorae which were also absent at the same time,Even the lack of a solar corona during solar eclipses was noted prior to 1715. Sunspot research was dormanrt for much of the 17th century and early eighteenth centuries because MAUNDER MINIMUM.during which sunspots were visable for some years but after the resumption of sunspot activity.HEINRICH SCHWABE in 1843 reported a periodic change in the number of sunspoots.Since 1981 the ROYAL OBSERVATORY OF BELGIUM keeps track of sunspots as the World data center for the SUNSPOT INDEX.