A solar cycle: a montage of ten years ' worth of Yohkoh SXT images, demonstrating the variation in solar activity during a sunspot cycle, from after August 30, 1991, at the peak of Solar cycle 22 | cycle 22, to September 6, 2001, at the peak of Solar cycle 23 | cycle 23.

A solar cycle: a montage of ten years ' worth of Yohkoh SXT images, demonstrating the variation in solar activity during a sunspot cycle, from after August 30, 1991, to September 6, 2001. Credit: the Yohkoh mission of Institute of Space and Astronautical Science | ISAS ( Japan ) and NASA ( US ).

0.005 seconds.