Sunspot region AR8662
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/08/07 | 6 | 20 | CRO | S16E60 | |
| 1999/08/08 | 10 | 100 | DAO | S16E50 | |
| 1999/08/09 | 19 | 130 | ESO | S16E35 | |
| 1999/08/10 | 27 | 230 | EAC | S16E21 | |
| 1999/08/11 | 43 | 290 | FAI | S16E07 | |
| 1999/08/12 | 39 | 290 | FAI | S15W06 | |
| 1999/08/13 | 37 | 180 | EAI | S16W19 | |
| 1999/08/14 | 25 | 170 | FAI | S16W33 | |
| 1999/08/15 | 15 | 130 | FSI | S16W46 | |
| 1999/08/16 | 9 | 100 | FSO | S15W59 | |
| 1999/08/17 | 3 | 40 | CSO | S15W75 | |
| 1999/08/18 | 1 | 40 | HRX | S16W90 |
| B | C |
|---|---|
| 1 | 17 |
The top 10 solar flares from sunspot region 8662
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C7.07 | 1999/08/17 | 23:33 | 23:45 | 23:57 | |
| 2 | C6.61 | 1999/08/10 | 16:18 | 16:24 | 16:29 | |
| 3 | C6.04 | 1999/08/13 | 15:48 | 15:59 | 16:05 | |
| 4 | C4.67 | 1999/08/13 | 19:27 | 19:33 | 19:51 | |
| 5 | C4.34 | 1999/08/13 | 07:45 | 07:52 | 07:57 | |
| 6 | C2.97 | 1999/08/14 | 07:32 | 07:40 | 07:45 | |
| 7 | C2.29 | 1999/08/10 | 22:03 | 22:08 | 22:11 | |
| 8 | C2.29 | 1999/08/14 | 15:19 | 15:27 | 15:37 | |
| 9 | C2.14 | 1999/08/08 | 03:26 | 03:27 | 03:32 | |
| 10 | C2.01 | 1999/08/10 | 09:51 | 09:59 | 10:07 |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
Incoming & Unnumbered Active Regions 192Solar cycle 25, solar maximum, is it over? 47Comet C/2026 A1 (MAPS) for the southern hemisphere 10Space Weather Memes 801Filaments and prominences 492
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 2 days |
| 2026 | 2 days (4%) |
| Current stretch | 3 days |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 82.3 -30.3 |
| Last 30 days | 91 -31 |