Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
---|---|---|---|---|---|
1998/09/18 | 1 | 150 | HHX | N20E76 | |
1998/09/19 | 8 | 360 | DKO | N22E64 | |
1998/09/20 | 12 | 470 | CKO | N19E50 | |
1998/09/21 | 11 | 490 | DKO | N19E38 | |
1998/09/22 | 21 | 540 | DKO | N19E25 | |
1998/09/23 | 28 | 380 | DAI | N20E11 | |
1998/09/24 | 31 | 460 | EKO | N20W02 | |
1998/09/25 | 25 | 520 | DKO | N20W15 | |
1998/09/26 | 18 | 390 | DKI | N20W27 | |
1998/09/27 | 18 | 350 | CKI | N21W40 | |
1998/09/28 | 8 | 300 | CKO | N19W54 | |
1998/09/29 | 7 | 320 | CHO | N20W68 | |
1998/09/30 | 1 | 230 | HSX | N19W82 | |
1998/10/01 | 1 | 100 | HSX | N19W93 |
B | C | M |
---|---|---|
2 | 12 | 2 |
Start | Maximum | End | ||||
---|---|---|---|---|---|---|
1 | M9.96 | 1998/09/23 | 06:40 | 07:13 | 07:31 | |
2 | M4.1 | 1998/09/30 | 13:08 | 13:50 | 14:48 | |
3 | C8.81 | 1998/09/29 | 01:54 | 02:02 | 02:09 | |
4 | C8.59 | 1998/09/27 | 23:37 | 23:42 | 23:49 | |
5 | C7.54 | 1998/09/27 | 16:23 | 16:42 | 16:46 | |
6 | C4.74 | 1998/09/28 | 05:44 | 05:53 | 05:58 | |
7 | C4.03 | 1998/09/21 | 07:36 | 08:06 | 08:23 | |
8 | C3.77 | 1998/09/27 | 08:06 | 08:13 | 08:23 | |
9 | C3.27 | 1998/09/23 | 22:43 | 22:50 | 22:55 | |
10 | C2.87 | 1998/09/21 | 18:12 | 18:21 | 18:34 |
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Last X-flare | 2024/10/31 | X2.03 |
Last M-flare | 2024/11/05 | M2.6 |
Last geomagnetic storm | 2024/10/12 | Kp5 (G1) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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September 2024 | 141.4 -74.1 |
November 2024 | 215.8 +74.4 |
Last 30 days | 161.1 +7.2 |