SOLAR SYSTEM

Detailed explanation-1: -The Sun’s magnetic field goes through a cycle, called the solar cycle. Every 11 years or so, the Sun’s magnetic field completely flips. This means that the Sun’s north and south poles switch places. Then it takes about another 11 years for the Sun’s north and south poles to flip back again.

Detailed explanation-2: -Schwabe conducted observations of the Sun from 1826 to 1843 and determined that the Sun rotates on its axis once in 27 days. He also established that activity on the Sun increases and decreases over approximately an 11 year cycle.