== المصادر ==== وصلات خارجية ==* Solar Influences Data Analysis Center (SIDC)* Graphics of historic solar cycles at the SIDC page* Near realtime solar images from SOHOقائمة الدورات الشمسية- موسوعةالمعرفة
==References====External links==*Solar Influences Data Analysis Center (SIDC)*Graphics of historic solar cycles at the SIDC page*Near realtime solar images from SOHO*Official list of solar cycles