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.

September 2017

month: year:
Monday Tuesday Wednesday Thursday Friday Saturday Sunday
    

1

C2.0
Kp4

2

C7.7
G1

3

C1.1
Kp3-

4

M5.5
G1

5

M4.2
Kp4

6

X9.3
Kp3+

7

X1.3
G4

8

M8.1
G4

9

M3.7
Kp2+

10

X8.2
Kp3

11

B9.8
Kp3+

12

C3.0
G1

13

B1.4
G1

14

G1

15

G2

16

17

18

19

20

B8.4

21

22

23

B3.0

24

25

26

27

28

29

30

 
       
Current data suggest that it is not possible to see aurora now at middle latitudes

Latest news

Today's space weather

Auroral activity Minor Severe
High latitude 25% 25%
Middle latitude 5% 1%
Predicted Kp max 3
Solar activity
M-class solar flare 15%
X-class solar flare 1%
B3.0
Moon phase
Waxing Crescent

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/09/09M1.1
Last geomagnetic storm:2017/09/18Kp5 (G1)
Number of spotless days in 2017:56
Last spotless day:2017/08/01

This day in history*

Solar flares
11998M7.1
22014M2.3
32011M1.9
42011M1.6
52011M1.6
ApG
1200141G2
2199928G2
3199627G1
4200716
5200315
*since 1994