Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
---|---|---|---|---|---|
1999/12/18 | 4 | 320 | FHO | N18E71 | |
1999/12/19 | 13 | 630 | FKI | N19E62 | |
1999/12/20 | 20 | 890 | FKC | N19E50 | |
1999/12/21 | 28 | 1040 | FKI | N19E37 | |
1999/12/22 | 33 | 940 | FHC | N19E24 | |
1999/12/23 | 37 | 1050 | FKC | N19E12 | |
1999/12/24 | 28 | 1100 | FHC | N19W01 | |
1999/12/25 | 48 | 1050 | FKC | N20W14 | |
1999/12/26 | 43 | 930 | FKC | N20W28 | |
1999/12/27 | 39 | 900 | FKC | N21W41 | |
1999/12/28 | 48 | 810 | FHC | N20W54 | |
1999/12/29 | 20 | 520 | FHI | N19W66 | |
1999/12/30 | 7 | 390 | EAO | N18W83 | |
1999/12/31 | 2 | 60 | CAO | N22W96 |
C | M |
---|---|
34 | 8 |
Start | Maximum | End | ||||
---|---|---|---|---|---|---|
1 | M7.71 | 1999/12/22 | 18:52 | 19:04 | 19:08 | |
2 | M6.5 | 1999/12/28 | 00:39 | 00:48 | 00:52 | |
3 | M2.91 | 1999/12/27 | 11:54 | 12:06 | 12:09 | |
4 | M2.19 | 1999/12/18 | 19:09 | 19:12 | 19:15 | |
5 | M1.61 | 1999/12/21 | 17:12 | 17:19 | 17:22 | |
6 | M1.54 | 1999/12/27 | 01:46 | 01:54 | 02:09 | |
7 | M1.36 | 1999/12/18 | 01:21 | 01:29 | 01:38 | |
8 | M1.27 | 1999/12/29 | 09:22 | 09:27 | 09:31 | |
9 | C8.39 | 1999/12/18 | 18:09 | 18:14 | 18:16 | |
10 | C8.21 | 1999/12/18 | 18:30 | 18:36 | 18:38 |
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Last X-flare | 2024/11/06 | X2.39 |
Last M-flare | 2024/11/27 | M1.0 |
Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
Spotless days | |
---|---|
Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
---|---|
October 2024 | 166.4 +25 |
December 2024 | 98 -68.4 |
Last 30 days | 133.6 -27.6 |