Sunspot region AR13720
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2024/06/19 | 5 | 30 | DAO | S01E80 | |
| 2024/06/20 | 5 | 60 | DAO | S05E62 | |
| 2024/06/21 | 8 | 80 | CAO | S05E52 | |
| 2024/06/22 | 13 | 120 | DAI | S05E34 | |
| 2024/06/23 | 13 | 140 | DAI | S05E21 | |
| 2024/06/24 | 15 | 150 | DAI | S06E10 | |
| 2024/06/25 | 15 | 130 | DAI | S06W04 | |
| 2024/06/26 | 18 | 130 | DAI | S06W17 | |
| 2024/06/27 | 6 | 90 | DAO | S06W31 | |
| 2024/06/28 | 5 | 80 | DAO | S06W44 | |
| 2024/06/29 | 3 | 30 | CRO | S05W58 | |
| 2024/06/30 | 3 | 30 | BXO | S05W71 |
2024/06/19
2024/06/20
2024/06/21
2024/06/22
2024/06/23
2024/06/24
2024/06/25
2024/06/26
2024/06/27
2024/06/28
2024/06/29
2024/06/30
|
2024/06/19
2024/06/20
2024/06/21
2024/06/22
2024/06/23
2024/06/24
2024/06/25
2024/06/26
2024/06/27
2024/06/28
2024/06/29
2024/06/30
|
| C | M |
|---|---|
| 6 | 2 |
The top 8 solar flares from sunspot region 13720
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.1 | 2024/06/24 | 11:09 | 11:13 | 11:15 | |
| 2 | M1.0 | 2024/06/22 | 11:00 | 11:06 | 11:10 | |
| 3 | C8.7 | 2024/06/22 | 19:34 | 19:49 | 20:04 | |
| 4 | C7.4 | 2024/06/24 | 13:55 | 13:57 | 14:02 | |
| 5 | C5.0 | 2024/06/21 | 18:23 | 18:29 | 18:38 | |
| 6 | C4.9 | 2024/06/23 | 23:10 | 23:17 | 23:24 | |
| 7 | C3.4 | 2024/06/21 | 19:14 | 19:18 | 19:29 | |
| 8 | C2.0 | 2024/07/01 | 17:50 | 17:57 | 18:04 |
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
AR4366 490Space Weather Memes 783Do the high-resolution sunspot counts point to more complex sunspots? 44JHelioviewer Tips and Settings 38Incoming & Unnumbered Active Regions 141
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Space weather facts
| Last X-flare | 2026/02/02 | X2.9 |
| Last M-flare | 2026/02/02 | M2.3 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 97 -27 |
| Last 30 days | 118.3 +3.5 |