Sunspot region AR8724
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/06 | 2 | 10 | CSO | N19W11 | |
| 1999/10/07 | 4 | 10 | BXO | N19W24 | |
| 1999/10/08 | 4 | 10 | BXO | N18W38 | |
| 1999/10/09 | 2 | 10 | BXO | N19W50 | |
| 1999/10/10 | 3 | 0 | BXO | N22W62 | |
| 1999/10/11 | 3 | 20 | BXO | N20W80 |
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
AR4087 184Unspecified geomagnetic activity 2496Solar Transit, Artifacts, or Radiation 19Ask your obscure/"stupid" space weather questions. 404Tuesday's Filament makes the news in the UK 7
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Space weather facts
| Last X-flare | 2025/05/14 | X2.7 |
| Last M-flare | 2025/05/15 | M2.1 |
| Last geomagnetic storm | 2025/05/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 70.6 -70 |
| Last 30 days | 96.1 -22.1 |