The aurora and solar activity archive

Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday.

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May 2013

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1

C9.6
G2

2

M1.1
Kp4-

3

M5.7
Kp2

4

C5.6
Kp2-

5

M1.4
Kp3+

6

C2.4
Kp2+

7

C1.6
Kp3

8

C2.9
Kp3

9

C9.0
Kp1+

10

M3.9
Kp1+

11

C8.0
Kp1+

12

M1.9
Kp2-

13

X2.8
Kp2+

14

X3.2
Kp2+

15

X1.2
Kp4

16

M1.3
Kp4

17

M3.2
Kp3+

18

C6.0
G1

19

C9.9
Kp4-

20

M1.7
Kp2+

21

C2.9
Kp2+

22

M5.0
Kp3

23

C3.9
Kp3

24

C2.5
G2

25

C2.1
G1

26

C3.8
Kp4

27

B8.1
Kp4

28

B9.6
Kp3

29

C2.9
Kp0+

30

B9.4
Kp1-

31

M1.0
Kp4-
  
       

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Space weather facts

Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
Last geomagnetic storm2020/04/20Kp5 (G1)
Spotless days
Last 365 days295 days
2020157 days (72%)
Last spotless day2020/07/20

This day in history*

Solar flares
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31999M1
42012C9.4
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ApG
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*since 1994

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