Sunspot region AR10420
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2003/07/25 | 1 | 40 | HAX | N11E79 | |
| 2003/07/26 | 1 | 70 | HSX | N10E64 | |
| 2003/07/27 | 1 | 100 | HSX | N11E51 | |
| 2003/07/28 | 1 | 70 | HSX | N11E38 | |
| 2003/07/29 | 1 | 70 | HSX | N11E24 | |
| 2003/07/30 | 1 | 80 | HSX | N11E11 | |
| 2003/07/31 | 1 | 80 | HSX | N11W02 | |
| 2003/08/01 | 1 | 80 | HSX | N11W15 | |
| 2003/08/02 | 2 | 60 | HSX | N11W30 | |
| 2003/08/03 | 1 | 60 | HSX | N11W43 | |
| 2003/08/04 | 1 | 60 | HSX | N11W57 | |
| 2003/08/05 | 1 | 70 | HSX | N11W71 | |
| 2003/08/06 | 1 | 50 | HSX | N11W83 | |
| 2003/08/07 | 1 | 50 | HAX | N12W97 |
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
CMEs from AR4420 (April 23th - 24th) 52AR4425 55Incoming & Unnumbered Active Regions 294AR4420 211SWPC Display bug or other issues 27
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/04/28 | M1.1 |
| Last geomagnetic storm | 2026/04/20 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 86.4 +0.5 |
| Last 30 days | 89.9 +3.4 |
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