2007-03-26 05:13:25 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Start your research here:
http://en.wikipedia.org/wiki/Sunspots
2007-03-26 05:16:57 · answer #1 · answered by Brian L 7 · 0⤊ 0⤋
Sunspots are zones cooler than average and are not truly dark, it's only apparent in contrast with the surrounding zones (unless the colors are modified with computer programs); they are absolutely natural because a star is an extremily dynamic system, and it seems they are linked with an increment in the star activity; anyway this increment also is part of a natural periodic cycle.
2007-03-26 12:23:24 · answer #2 · answered by MadScientist 2 · 0⤊ 0⤋
They're places on the sun where the temperature is lower than the surrounding of the surface. They also have interactions with the sun's magnetic field. These interactions are poorly understood.
2007-03-26 12:17:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋