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 2012

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1

C3.9
Kp2-

2

C3.2
Kp2+

3

C2.3
Kp3

4

C2.3
Kp2

5

M1.4
Kp1+

6

M1.3
Kp2

7

M1.9
Kp2-

8

M1.4
Kp4

9

M4.7
G1

10

M5.7
Kp4-

11

C6.1
Kp4-

12

C2.5
Kp3

13

C7.0
Kp3+

14

C4.1
Kp3-

15

C3.0
Kp2

16

C2.5
Kp4-

17

M5.1
Kp2-

18

C3.6
Kp3

19

C1.1
Kp2

20

Kp4

21

Kp4-

22

B5.9
Kp4+

23

C1.2
G1

24

C3.9
Kp2

25

C2.0
Kp2+

26

C2.7
Kp2+

27

C3.1
Kp1+

28

B7.4
Kp2+

29

B3.5
Kp2+

30

C1.0
Kp2+

31

C2.5
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 days319 days
2020125 days (81%)
Current stretch2 days

This day in history*

Solar flares
12007M7.0
22000M6.1
32007M4.5
42012M3.3
52007M2.4
ApG
1200329G1
2201224G2
3199523G1
4199423G1
5199814
*since 1994

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