File:Sunspot butterfly graph.gif

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DescriptionSunspot butterfly graph.gif	English: Butterfly diagram showing paired pattern of sunspots. Graph shows sunspot numbers. en: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 en: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.
Date	April 2011
Source	http://solarscience.msfc.nasa.gov/images/bfly.gif (updated monthly) http://solarscience.msfc.nasa.gov/SunspotCycle.shtml (explanatory text)
Author	NASA, Marshal Space Flight Center, Solar Physics

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2006-11-27 13:22 Whitepaw 2048×1280×8 (135495 bytes) {{pd-nasa}} Updated image with latest version (updates monthly)
2005-03-11 17:53 SEWilco 2048×1280×8 (135177 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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	Date/Time	Dimensions	User	Comment
current	15:07, 12 August 2016	2,150 × 1,280 (142 KB)	Jan Arkesteijn	2016-08
	10:55, 17 March 2016	2,150 × 1,280 (142 KB)	Jan Arkesteijn	2016/01
	20:28, 27 April 2015	2,150 × 1,280 (141 KB)	Jan Arkesteijn	April 2015
	22:35, 23 September 2014	2,150 × 1,280 (138 KB)	Jan Arkesteijn	September 2014
	15:35, 3 April 2014	2,150 × 1,280 (138 KB)	Jan Arkesteijn	April 2014
	11:09, 27 October 2013	2,048 × 1,280 (136 KB)	Jan Arkesteijn	October 2013
	10:52, 11 April 2013	2,048 × 1,280 (135 KB)	Jan Arkesteijn	april 2013
	20:10, 1 January 2013	2,048 × 1,280 (135 KB)	Jan Arkesteijn	december 2012
	14:00, 11 August 2012	2,048 × 1,280 (135 KB)	Jan Arkesteijn	version August 2012
	20:52, 2 May 2012	2,048 × 1,280 (135 KB)	Jan Arkesteijn	version april 2012