The Sun activity increases during every ...

5 years
11 years
22 years
1300 years
Basic period of time in which the activity of Sun is increasing is 11 years. It is visible on the chart.
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Katarzyna Dąbrowska
reach: rather globalastronomySununiverse
5 years
11 years
22 years
1300 years
answers
flagGermany
13%
47%
16%
22%
61
flagIndia
19%
47%
11%
22%
36
flagthe United Kingdom
7%
44%
23%
23%
106
flagPoland
13%
40%
18%
27%
5040
flagthe United States
12%
34%
20%
34%
50
flagUnknown
13%
32%
21%
32%
489
flagItaly
0%
20%
60%
20%
10
flagthe Netherlands
10%
20%
50%
20%
10