Sunspot region AR13540
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/01/05 | 9 | 100 | DAO | S18E67 | |
| 2024/01/06 | 12 | 350 | DKI | S18E53 | |
| 2024/01/07 | 17 | 310 | EKI | S17E47 | |
| 2024/01/08 | 15 | 290 | DKI | S17E31 | |
| 2024/01/09 | 14 | 240 | CAO | S18E18 | |
| 2024/01/10 | 14 | 240 | CAO | S18E04 | |
| 2024/01/11 | 12 | 150 | CAO | S18W10 | |
| 2024/01/12 | 8 | 60 | CAO | S17W21 | |
| 2024/01/13 | 13 | 80 | CAI | S18W37 | |
| 2024/01/14 | 13 | 80 | DAI | S18W51 | |
| 2024/01/15 | 8 | 160 | CAI | S19W65 | |
| 2024/01/16 | 4 | 80 | CAO | S17W81 | |
| 2024/01/17 | 4 | 80 | CAO | S20W95 |
2024/01/05
2024/01/06
2024/01/07
2024/01/08
2024/01/09
2024/01/10
2024/01/11
2024/01/12
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2024/01/14
2024/01/15
2024/01/16
2024/01/17
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2024/01/05
2024/01/06
2024/01/07
2024/01/08
2024/01/09
2024/01/10
2024/01/11
2024/01/12
2024/01/13
2024/01/14
2024/01/15
2024/01/16
2024/01/17
|
| C |
|---|
| 16 |
The top 10 solar flares from sunspot region 13540
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C4.1 | 2024/01/11 | 08:07 | 08:20 | 08:42 | |
| 2 | C3.0 | 2024/01/06 | 08:17 | 08:25 | 08:31 | |
| 3 | C3.0 | 2024/01/11 | 07:56 | 08:03 | 08:07 | |
| 4 | C3.0 | 2024/01/18 | 10:05 | 10:14 | 10:28 | |
| 5 | C2.4 | 2024/01/04 | 22:36 | 22:48 | 22:58 | |
| 6 | C2.4 | 2024/01/08 | 02:48 | 02:52 | 02:59 | |
| 7 | C2.4 | 2024/01/17 | 16:57 | 17:08 | 17:22 | |
| 8 | C1.9 | 2024/01/05 | 00:23 | 00:30 | 00:32 | |
| 9 | C1.9 | 2024/01/15 | 19:24 | 19:33 | 19:57 | |
| 10 | C1.7 | 2024/01/06 | 21:53 | 21:59 | 22:05 |
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
Latest forum messages
AR4392 (including CMEs) 110CH 31 HSS 17Growth of Cycle 25 987Incoming & Unnumbered Active Regions 224Current Farside Activity 418
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/14 | Kp6 (G2) |
| 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 | 82.4 +4.2 |
| Last 30 days | 62.7 -52.5 |