Sunspot region AR8420
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/12/24 | 1 | 10 | AXX | N18E64 | |
| 1998/12/25 | 2 | 10 | AXX | N18E52 | |
| 1998/12/26 | 1 | 0 | AXX | N17E40 | |
| 1998/12/27 | 3 | 10 | BXO | N20E24 | |
| 1998/12/28 | 3 | 10 | BXO | N20E12 | |
| 1998/12/29 | 3 | 10 | BXO | N18W01 | |
| 1998/12/31 | 2 | 10 | HRX | N19W17 | |
| 1999/01/01 | 2 | 0 | AXX | N20W30 | |
| 1999/01/02 | 5 | 30 | BXO | N20W42 | |
| 1999/01/03 | 1 | 0 | AXX | N20W55 |
| C | M |
|---|---|
| 1 | 1 |
The top 2 solar flares from sunspot region 8420
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.26 | 1999/01/03 | 08:07 | 08:54 | 09:58 | |
| 2 | C1.47 | 1999/01/03 | 05:23 | 05:26 | 05:28 |
Latest news
Friday, 17 May 2024
Let's compare! Halloween 2003 VS May 2024 Solar Storms!
Friday, 17 May 2024
Coronal mass ejection impact, New website feature!
Wednesday, 15 May 2024
More X-flares!
Latest forum messages
AR3664 1071AR3685 53May 2024 Geomagnetic Storms from AR 13664 (2) 323Anomaly.. 18Growth of Cycle 25 437
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 | 2024/05/15 | X2.9 |
| Last M-flare | 2024/05/17 | M7.1 |
| Last geomagnetic storm | 2024/05/17 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 157.2 +20.7 |
| Last 30 days | 174.3 +64.2 |