mextremel

in search of answers since 1969 ~ prospecting the net since 1994

Tag Archives: ESA

Sunspotting

Sunspots are “holes” in the surface of the Sun, the visible counterparts of magnetic flux tubes in the Sun’s convective zone that get “wound up” by differential rotation. Although temperature in the dark area is decreased, it’s still around 4000°C and the spots would glow brighter than an electrical arc if you could isolate them [...]