Image:Sunspot butterfly with graph.gif
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Butterfly diagram showing paired pattern of sunspots. Graph shows sunspot numbers.
- Spörer's law noted that at the start of an 11-year sunspot cycle, the spots appeared first at higher latitudes and later in progressively lower latitudes.
- The Babcock Model explains the behavior described by Spörer's law, as well as other effects, as being due to magnetic fields which are twisted by the Sun's rotation.
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Source: http://science.msfc.nasa.gov/ssl/pad/solar/images/bfly.gif (updated monthly)
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- (del) (cur) 13:22, 27 November 2006 . . Whitepaw (Talk | contribs) . . 2048×1280 (135,495 bytes) ({{pd-nasa}} Updated image with latest version (updates monthly))
- (del) (rev) 17:53, 11 March 2005 . . SEWilco (Talk | contribs) . . 2048×1280 (135,177 bytes) (Butterfly diagram showing paired pattern of sunspots. Graph shows sunspot numbers. {{PD-USGov-NASA}} Source: http://science.msfc.nasa.gov/ssl/pad/solar/images/bfly.gif (updated monthly))
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