Tootfinder

Ca ii K Polar Network Index of the Sun - A Proxy for Historical Polar Magnetic Field: #SolarCycle activity: https://www.swri.org/newsroom/press-releases/using-100-year-old-data-help-predict-future-solar-cycle-activity

The seismic diversity of four successive #SolarCycle minima as observed by the Birmingham Solar-Oscillations Network (BiSON): https://academic.oup.com/mnras/article/547/1/stag277/8472642 -> Forty years of data give unique insight into Sun’s inner life: https://www.birmingham.ac.uk/news/2026/forty-years-of-data-give-unique-insight-into-suns-inner-life - scientists reveal that even small differences in solar magnetic activity produce detectable changes inside the Sun.