Sunspot region AR13873
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/10/24 | 3 | 240 | DAI | S10E77 | |
| 2024/10/25 | 5 | 120 | DAI | S10E63 | |
| 2024/10/26 | 5 | 120 | DAI | S10E49 | |
| 2024/10/27 | 5 | 90 | CAO | S10E35 | |
| 2024/10/28 | 15 | 100 | CAI | S12E21 | |
| 2024/10/29 | 10 | 70 | CAO | S08W36 | |
| 2024/10/30 | 9 | 40 | HAX | S08W06 | |
| 2024/10/31 | 4 | 40 | CAO | S12W18 | |
| 2024/11/01 | 1 | 30 | HAX | S12W29 | |
| 2024/11/02 | 1 | 20 | HAX | S10W45 | |
| 2024/11/03 | 2 | 20 | HAX | S10W58 | |
| 2024/11/04 | 1 | 20 | HRX | S08W73 | |
| 2024/11/05 | 1 | 10 | AXX | S09W84 |
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| C | M | X |
|---|---|---|
| 2 | 3 | 1 |
The top 6 solar flares from sunspot region 13873
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | X1.86 | 2024/10/26 | 05:57 | 07:17 | 07:56 | |
| 2 | M9.5 | 2024/10/26 | 05:57 | 06:23 | 06:32 | |
| 3 | M1.1 | 2024/10/25 | 07:23 | 07:33 | 07:38 | |
| 4 | M1.1 | 2024/10/29 | 16:21 | 16:33 | 16:41 | |
| 5 | C4.0 | 2024/10/26 | 03:58 | 04:09 | 04:13 | |
| 6 | C2.7 | 2024/10/25 | 17:22 | 17:27 | 17:31 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
Solar Cycle 25 25Available resources & tools / space weather databases 10AR4381 15Solar cycle 25, solar maximum, is it over? 57Unspecified geomagnetic activity 92
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/03/03 | 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 | 74.8 -3.4 |
| Last 30 days | 52.1 -75.8 |