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.

Previous month

May 1997

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Sun.
   

1

G2

2

G1

3

B1.0
Kp3

4

B1.7
Kp3

5

B4.3
Kp3

6

B1.2
Kp1+

7

B1.9
Kp2-

8

Kp2-

9

Kp1+

10

Kp1+

11

Kp2+

12

C1.3
Kp1-

13

B2.5
Kp1-

14

B3.7
Kp3-

15

B1.4
G3

16

B2.1
Kp4-

17

Kp4-

18

B1.9
Kp2

19

B3.1
Kp1-

20

C4.2
Kp2

21

M1.3
Kp1+

22

B2.8
Kp1+

23

B3.5
Kp1-

24

B5.2
Kp2+

25

B6.5
Kp2

26

B3.7
Kp3+

27

C4.6
G2

28

C1.2
Kp2+

29

Kp1+

30

Kp3-

31

B1.7
Kp3-
 
       

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Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
Last geomagnetic storm2020/04/20Kp5 (G1)
Spotless days
Last 365 days320 days
2020124 days (82%)
Last spotless day2020/05/31

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*since 1994

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