Tuesday, September 23, 2008

daily sunspot

scientists have been very concerned lately. There has been almost zero sunspot activity for a very long time. Nasa has even started to have conferences regarding this fact. Today there are small sunspots in upper right of this picture.

here is some info. regarding the history of sunspots:

The Maunder Minimum

Early records of sunspots indicate that the Sun went through a period of inactivity in the late 17th century. Very few sunspots were seen on the Sun from about 1645 to 1715 (38 kb JPEG image). Although the observations were not as extensive as in later years, the Sun was in fact well observed during this time and this lack of sunspots is well documented. This period of solar inactivity also corresponds to a climatic period called the "Little Ice Age" when rivers that are normally ice-free froze and snow fields remained year-round at lower altitudes. There is evidence that the Sun has had similar periods of inactivity in the more distant past. The connection between solar activity and terrestrial climate is an area of on-going research.

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