WORLD NEWS
The giant 1947 sunspot could store superflare-scale energy
One of the largest recorded sunspot groups had enough estimated magnetic capacity to enter the superflare range.
Capacity is not occurrence probability, timing or proof of a historical eruption.
Method
Modern relationships between spot area, complexity and flare upper limits were extended to historical observations.
Scale
The group covered about 0.6% of the visible disk and spanned roughly 40 Earth diameters.
Potential
Stored magnetic energy and the instability that releases it are separate requirements.
Earth impact
Radiation, coronal mass ejections and particles differ; direction and magnetic orientation control damage.
Next
Better historical magnetic reconstruction and stellar comparisons are needed; preparedness should use live official space-weather warnings.
Primary source and independent checks
Philosophical Transactions A 논문 서지
Read in other languages
한국어 · English · Español · 日本語 · Tiếng Việt