| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/01/27 | 1 | 10 | AXX | N26W22 | |
| 1999/01/28 | 3 | 0 | BXO | N27W35 | |
| 1999/01/29 | 1 | 0 | AXX | N27W49 | |
| 1999/01/30 | 2 | 10 | BXO | N27W60 | |
| 1999/01/31 | 3 | 10 | BXO | N27W74 | |
| 1999/02/01 | 5 | 10 | BXO | N26W86 |
| C |
|---|
| 1 |
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C1.12 | 1999/01/31 | 07:09 | 07:12 | 07:15 |
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/23 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 77.7 -0.5 |
| Last 30 days | 72.3 -15.7 |