Solar cycles in the medieval period (IMAGE)
Caption
Reconstructed solar cycles based on carbon-14 records, relative to baseline activity level at y=0, overlaid with historical records: orange circles denote the timing of aurora sightings, blue and red stars denote prolonged aurora events like those described in Meigetsuki, and black diamonds indicate the emergence of large sunspots.
Credit
Miyahara et al., 2026
Usage Restrictions
Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted.
License
CC BY-NC-ND