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Solar cycle 21
Results: 35

#	Item
31	The Sunspot Cycle - endings and beginnings The above plot shows the current sunspot cycle (Number 23) based on the average monthly sunspot counts since January, 1994. Problem 1 - About when (month and year) did Sunspot Add to Reading List Source URL: www.nasa.gov Language: English - Date: 2013-04-30 20:26:18 Sunspot Vortices Solar cycle Sun Solar cycle 21 Solar cycle 9 Astronomy Physics Matter
32	GEOPHYSICAL RESEARCH LETTERS, VOL. 30, NO. 5, 1199, doi:[removed]2002GL016038, 2003 Secular total solar irradiance trend during solar cycles 21–23 Richard C. Willson Center for Climate Systems Research, Columbia Univer Add to Reading List Source URL: www.acrim.com Language: English - Date: 2010-03-23 20:24:49 Space Active Cavity Radiometer Irradiance Monitor Satellite Upper Atmosphere Research Satellite Light sources Photovoltaics Solar cycle Solar Maximum Mission Active cavity radiometer Solar and Heliospheric Observatory Spaceflight Spacecraft Radiometry
33	Journal of Fusion Energy, vol. 21, [removed], December[removed]Manuel, Ninham, and Friberg There is not a 1:1 correspondence of the pages here with those in the published paper Add to Reading List Source URL: www.omatumr.com Language: English - Date: 2006-08-08 23:21:08 Sun Space Plasma physics Planetary science Light sources Solar variation Solar cycle Corona Solar wind Physics Astronomy Space plasmas
34	S. Yousef et al. / ICEHM2000, Cairo University, Egypt, September, 2000, page[removed]ALERT El SAHEL COUNTRIES; DROUGHT IS APPROACHING Add to Reading List Source URL: www.virtualacademia.com Language: English - Date: 2003-10-17 17:20:09 Droughts Climatology Hydrology Sahel Solar cycle 1 Solar cycle 21 Sahara Solar cycle 20 Solar cycle 2 Physical geography Africa Earth
35	VOLUME 91, N UMBER 21 PHYSICA L R EVIEW LET T ERS Add to Reading List Source URL: files.climategatecesky.webnode.cz Language: English - Date: 2010-02-07 17:59:39 Climate history Light sources Space science Solar cycle Plasma physics Space plasmas Sunspot Coronal mass ejection Dalton Minimum Astronomy Physics Space

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