Sunspot region AR10509
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2003/11/25 | 2 | 110 | CSO | S10E56 | |
| 2003/11/26 | 10 | 120 | CSO | S10E43 | |
| 2003/11/27 | 7 | 80 | CAO | S11E28 | |
| 2003/11/28 | 6 | 50 | DSO | S11E15 | |
| 2003/11/29 | 4 | 70 | DAO | S11E02 | |
| 2003/11/30 | 4 | 70 | DSO | S11W11 | |
| 2003/12/01 | 2 | 40 | HAX | S11W24 | |
| 2003/12/02 | 4 | 40 | CSO | S11W37 | |
| 2003/12/03 | 2 | 30 | HSX | S11W52 | |
| 2003/12/04 | 1 | 10 | AXX | S11W67 | |
| 2003/12/05 | 1 | 20 | HRX | S10W80 |
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 10509
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.29 | 2003/11/24 | 18:51 | 18:54 | 18:57 | |
| 2 | C3.28 | 2003/11/27 | 00:23 | 00:29 | 00:31 | |
| 3 | C1.8 | 2003/11/25 | 02:08 | 02:15 | 02:20 |
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
AR4420 15Coronal Holes 42/44 98Incoming & Unnumbered Active Regions 278Current Farside Activity 460AR potential 4420 (not officially named yet) 5
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| 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 | 78.7 -7.2 |
| Last 30 days | 91.5 +25.1 |
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