Sunspot region AR8539
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/08 | 6 | 30 | BXO | N13E45 | |
| 1999/05/09 | 6 | 50 | DSO | N14E31 | |
| 1999/05/10 | 4 | 20 | BXO | N14E16 | |
| 1999/05/11 | 2 | 10 | BXO | N13E03 | |
| 1999/05/12 | 2 | 10 | BXO | N13W12 |
| M |
|---|
| 1 |
The top 1 solar flares from sunspot region 8539
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M3.6 | 1999/05/10 | 05:22 | 05:31 | 05:37 |
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Latest forum messages
Solar Transit, Artifacts, or Radiation 1Ask your obscure/"stupid" space weather questions. 385Incoming & Unnumbered Active Regions 1822Unspecified geomagnetic activity 2337Filaments and prominences 124
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 | 2025/04/22 | M1.3 |
| Last geomagnetic storm | 2025/04/21 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 126.5 -7.7 |
| Last 30 days | 124.6 -4.5 |