Sunspot region AR12820
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/04/24 | 11 | 70 | DAI | S21E05 | |
| 2021/04/25 | 12 | 80 | DSO | S22W05 | |
| 2021/04/26 | 15 | 110 | DSI | S21W18 | |
| 2021/04/27 | 11 | 70 | ESI | S21W32 | |
| 2021/04/28 | 6 | 30 | DAO | S21W46 | |
| 2021/04/29 | 5 | 30 | CRO | S23W57 | |
| 2021/04/30 | 3 | 20 | BXO | S22W71 | |
| 2021/05/01 | 1 | 10 | AXX | S20W82 |
2021/04/24
2021/04/25
2021/04/26
2021/04/27
2021/04/28
2021/04/29
2021/04/30
2021/05/01
|
2021/04/24
2021/04/25
2021/04/26
2021/04/27
2021/04/28
2021/04/29
2021/04/30
2021/05/01
|
| B |
|---|
| 42 |
The top 10 solar flares from sunspot region 12820
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | B7.3 | 2021/04/26 | 01:53 | 02:11 | 02:17 | |
| 2 | B6.6 | 2021/04/24 | 16:44 | 16:53 | 16:58 | |
| 3 | B4.8 | 2021/04/25 | 16:43 | 16:55 | 17:04 | |
| 4 | B4.5 | 2021/04/24 | 14:49 | 14:55 | 14:59 | |
| 5 | B4.4 | 2021/04/24 | 04:42 | 05:07 | 05:17 | |
| 6 | B4.3 | 2021/04/24 | 04:44 | 05:02 | 05:16 | |
| 7 | B3.8 | 2021/04/24 | 18:42 | 18:49 | 18:55 | |
| 8 | B3.5 | 2021/04/26 | 02:51 | 02:56 | 03:00 | |
| 9 | B3.4 | 2021/04/28 | 07:39 | 07:45 | 07:49 | |
| 10 | B3.3 | 2021/04/25 | 00:00 | 00:05 | 00:11 |
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.4 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 147 -7.6 |
| Last 30 days | 128.8 -21.8 |