| Sunspot number | 73 | -19 |
| New regions | 0 | -1 |
| 10.7cm Solar Radio Flux | 111 | -5 |
| Carrington Rotation | 2315 | |
Current value
2h max
24h max
| C-class solar flare | 75% |
| M-class solar flare | 25% |
| X-class solar flare | 1% |
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| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (1%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| July 2026 | 78.1 -16.3 |
| August 2026 | 81.6 +3.5 |
| Last 30 days | 83 +3.5 |
This day in history*
| Dst | G | ||
|---|---|---|---|
| 1 | 2004 | -129 | G3 |
| 2 | 1960 | -111 | G3 |
| 3 | 1966 | -111 | G3 |
| 4 | 1991 | -107 | G2 |
| 5 | 1979 | -101 | G1 |
*since 1994
No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!