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. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.

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December 1997

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1

M1.6
Kp3-

2

C1.8
Kp2-

3

C2.96
Kp2+

4

C1.83
Kp3

5

Kp3-

6

C1.93
Kp2-

7

B6.99
Kp2-

8

B4.83
Kp0+

9

C1.03
Kp1

10

B5.27
Kp4

11

B5.84
Kp3+

12

C3.13
Kp1+

13

B5.09
Kp1-

14

C1.59
Kp1

15

C3.19
Kp2+

16

B5.89
Kp3-

17

B4.81
Kp2+

18

B4.41
Kp4-

19

C1.61
Kp2

20

B8.09
Kp1+

21

C9.27
Kp3-

22

C8.64
Kp1

23

Kp2-

24

C1.04
Kp2+

25

B6.03
Kp1

26

C2.74
Kp1

27

C4.33
Kp0+

28

B6.51
Kp0+

29

B5.8
Kp1+

30

B9.96
Kp5-

31

C6.03
Kp1
    
       

Number of C-, M- and X-class flares

Combination chart with 4 data series.
The chart has 1 X axis displaying Time. Data ranges from 1970-01-01 00:00:00 to 1970-01-01 00:00:00.
The chart has 2 Y axes displaying Number of flares, and X-ray background flux.
SpaceWeatherLive.com
End of interactive chart.

Kp-index

Combination chart with 2 data series.
According to the finalized Kp-index of GFZ Potsdam
The chart has 1 X axis displaying Time. Data ranges from 1970-01-01 00:00:00 to 1970-01-01 00:00:00.
The chart has 2 Y axes displaying Kp-index, and Ap-index.
SpaceWeatherLive.com
End of interactive chart.

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Last X-flare2025/05/25X1.1
Last M-flare2025/05/25M1.6
Last geomagnetic storm2025/05/17Kp6+ (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2025140.6 +6.4
May 202574.5 -66.1
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This day in history*

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DstG
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*since 1994

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