Sunspot region AR12817
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2021/04/19 | 8 | 60 | BXO | N18W45 | |
| 2021/04/20 | 13 | 140 | DAI | N18W60 | |
| 2021/04/21 | 7 | 180 | DAO | N18W76 | |
| 2021/04/22 | 5 | 140 | CSO | N18W92 | |
| 2021/04/23 | 5 | 140 | CSO | N18W0* |
2021/04/19
2021/04/20
2021/04/21
2021/04/22
2021/04/23
|
2021/04/19
2021/04/20
2021/04/21
2021/04/22
2021/04/23
|
| B | C |
|---|---|
| 48 | 12 |
The top 10 solar flares from sunspot region 12817
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C8.6 | 2021/04/22 | 20:00 | 20:11 | 20:20 | |
| 2 | C4.3 | 2021/04/22 | 09:14 | 09:21 | 09:41 | |
| 3 | C3.7 | 2021/04/22 | 10:40 | 10:49 | 11:03 | |
| 4 | C2.4 | 2021/04/23 | 23:08 | 23:12 | 23:16 | |
| 5 | C2.3 | 2021/04/22 | 07:16 | 07:23 | 07:27 | |
| 6 | C2.3 | 2021/04/23 | 22:39 | 22:54 | 22:57 | |
| 7 | C2.3 | 2021/04/23 | 22:57 | 23:01 | 23:06 | |
| 8 | C1.7 | 2021/04/22 | 05:50 | 05:57 | 06:02 | |
| 9 | C1.6 | 2021/04/21 | 01:18 | 01:29 | 02:37 | |
| 10 | C1.4 | 2021/04/22 | 10:03 | 10:08 | 10:14 |
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
Unproven theories 359Incoming Active Regions 232Filaments and prominences 56AR3654 33Growth of Cycle 25 435
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 | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/30 | M1.6 |
| Last geomagnetic storm | 2024/04/26 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 139.9 +35.1 |