One of the clearest sunspot images ever taken
The darkest, central part of a sunspot has a temperature of 4,000o C, while the entire surface of the Sun is heated to 6,000o C.
Sunspots are the areas where solar activity reaches its highest levels.
The darkest, central part of a sunspot has a temperature of 4,000o C, while the entire surface of the Sun is heated to 6,000o C.
Sunspots are the areas where solar activity reaches its highest levels.