High-resolution Sunspot
Sunspots are regions of reduced surface temperature caused by intense magnetic fields.
Sunspots, like this one for example, can roughly be of the size of Earth(~12,000 km). The largest ones can span even up to 160,000 Km, which is roughly 13 times our Earth's size!
Credit: Luc Rouppe van der Voort, Swedish 1-m Solar Telescope.
u/archiopteryx14 — 24 days ago