Sunspot region AR10618
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2004/05/21 | 8 | 30 | CSO | S10E69 | |
| 2004/05/22 | 19 | 150 | CAI | S11E55 | |
| 2004/05/23 | 30 | 310 | EAI | S10E41 | |
| 2004/05/24 | 46 | 330 | FKI | S10E26 | |
| 2004/05/25 | 57 | 410 | FKI | S10E13 | |
| 2004/05/26 | 46 | 380 | FHC | S10W00 | |
| 2004/05/27 | 31 | 330 | FSC | S10W13 | |
| 2004/05/28 | 40 | 330 | FAC | S10W27 | |
| 2004/05/29 | 31 | 310 | EAC | S10W44 | |
| 2004/05/30 | 32 | 520 | FKC | S10W60 | |
| 2004/05/31 | 17 | 360 | FAC | S09W72 | |
| 2004/06/01 | 5 | 290 | FAO | S10W83 | |
| 2004/06/02 | 1 | 30 | HRX | S08W89 |
| B | C | M |
|---|---|---|
| 38 | 37 | 1 |
The top 10 solar flares from sunspot region 10618
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M3.73 | 2004/05/21 | 23:35 | 23:52 | 23:59 | |
| 2 | C9.41 | 2004/05/31 | 00:07 | 00:28 | 01:00 | |
| 3 | C6.6 | 2004/05/24 | 10:53 | 11:04 | 11:18 | |
| 4 | C6 | 2004/05/28 | 10:03 | 10:11 | 10:13 | |
| 5 | C5.43 | 2004/05/31 | 10:30 | 10:36 | 10:40 | |
| 6 | C5.41 | 2004/05/20 | 17:14 | 17:19 | 17:23 | |
| 7 | C4.18 | 2004/05/23 | 14:37 | 14:52 | 15:13 | |
| 8 | C3.61 | 2004/05/20 | 01:04 | 01:18 | 01:28 | |
| 9 | C3.38 | 2004/05/31 | 04:23 | 04:37 | 04:51 | |
| 10 | C3.24 | 2004/05/28 | 12:09 | 12:13 | 12:15 |
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/26 | M4.0 |
| Last geomagnetic storm | 2026/03/25 | 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 | 81.4 +3.2 |
| Last 30 days | 80 -0.8 |