Sunspot region AR10170
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2002/10/26 | 1 | 30 | HSX | S12E65 | |
| 2002/10/27 | 6 | 30 | CSO | S12E53 | |
| 2002/10/28 | 2 | 30 | CSO | S12E38 | |
| 2002/10/29 | 3 | 30 | CAO | S12E24 | |
| 2002/10/30 | 1 | 10 | AXX | S12E10 | |
| 2002/10/31 | 4 | 10 | CSO | S12W03 |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Latest forum messages
AR 4432 5Comet C/2025 R3 (PANSTARRS) 20Unspecified geomagnetic activity 237Incoming & Unnumbered Active Regions 341AR4431 24
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/07 | M2.6 |
| Last geomagnetic storm | 2026/05/05 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 122.1 +42.8 |
| Last 30 days | 91.5 -9.6 |
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