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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August 2017

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1

C1.4
Kp2+

2

B9.4
Kp2-

3

B2.4
Kp4-

4

Kp4+

5

B1.4
Kp4-

6

B1.5
Kp4+

7

Kp2

8

Kp2

9

Kp1+

10

Kp2

11

Kp3

12

Kp3+

13

Kp2+

14

C2.7
Kp2

15

C1.1
Kp1

16

B5.2
Kp2

17

B6.8
G1

18

C4.4
G1

19

C7.0
G1

20

M1.1
G1

21

C5.9
Kp3

22

C1.9
G1

23

C2.2
G1

24

C3.0
Kp4-

25

C5.5
Kp2-

26

B5.4
Kp1+

27

C6.3
Kp3

28

C1.0
Kp1-

29

C2.8
Kp4

30

C5.2
Kp2

31

B7.9
G1
   
       

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/10/26Kp5 (G1)
Number of spotless days in 2020:15
Current stretch spotless days:14

This day in history*

Solar flares
12003M1.9
22001M1.0
32001C9.2
42002C7.1
52001C6.4
ApG
1200120G1
2201218
3200418G1
4200318
5201917
*since 1994

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