The solar cycle is the periodic change in the Sun's activity including changes in the levels of solar radiation and ejection of solar material and appearance (visible in changes in the number of sunspots, flares, and other visible manifestations).They have been seen (by changes in the sun's appearance and by changes seen on Earth, for example, auroras) for several years and also
The solar cycle is the periodic change in the Sun's activity including changes in the levels of solar radiation and ejection of solar material and appearance (visible in changes in the number of sunspots, flares, and other visible manifestations).They have been seen (by changes in the sun's appearance and by changes seen on Earth, for example, auroras) for several years and also