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October 31, 2020, 9:54 am UTC    
September 11, 2008 09:30AM
Hi Don,

The latitude of sunspots varies through the sunspot cycle.

Quote

Along with the number of sunspots, the location of sunspots varies throughout the sunspot cycle. At solar min, sunspots tend to form around latitudes of 30° to 45° North and South of the Sun's equator. As the solar cycle progresses through solar max, sunspots tend to appear closer to the equator, around a latitude of 15°. Towards the end of a cycle, with solar min once again approaching, sunspots form quite close to the solar equator, around 7° North and South latitude. There is often an overlap in this latitudinal migration trend around solar min, when sunspots of the outgoing cycle are forming at low latitudes and sunspots of the upcoming cycle begin to form at high latitudes once again. This gradual equatorward drift of sunspots throughout the sunspot cycle, which was first noticed in the early 1860's by the German astronomer Gustav Spörer and the Englishman Richard Christopher Carrington, is often called Spörer's Law. In 1904 another English astronomer, Edward Walter Maunder, constructed the first "butterfly diagram", a graphical plot of this sunspot migration trend.
[www.windows.ucar.edu]

C. Wayne Taylor
Richmond, Virginia USA
Subject Author Posted

Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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A small addendum ...

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Re: A small addendum ...

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Neat...n/t

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Re: Rhind-Giza connection?

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Re: Finding Pi at Giza: Success at last ?

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Proof

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Re: A diagram for Clive et al: The King's Chamber and it's measurements

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Re: A diagram for Clive et al: The King's Chamber and it's measurements

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Re: A diagram for Clive et al: The King's Chamber and it's measurements

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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Re: Rhind-Giza connection?

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