Sunspot region AR8557
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/05/28 | 5 | 90 | DSO | S28E73 | |
| 1999/05/29 | 4 | 30 | DRO | S29E56 | |
| 1999/05/30 | 7 | 130 | CAO | S30E46 | |
| 1999/05/31 | 5 | 70 | DAO | S30E34 | |
| 1999/06/01 | 5 | 30 | HAX | S30E21 | |
| 1999/06/02 | 9 | 20 | CRO | S29E08 | |
| 1999/06/03 | 4 | 10 | BXO | S27W06 |
| C |
|---|
| 3 |
The top 3 solar flares from sunspot region 8557
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C8.91 | 1999/05/27 | 15:15 | 15:35 | 16:03 | |
| 2 | C3.14 | 1999/05/28 | 11:30 | 12:13 | 12:42 | |
| 3 | C1.86 | 1999/06/01 | 12:31 | 12:34 | 12:37 |
Latest news
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
Latest forum messages
Do the high-resolution sunspot counts point to more complex sunspots? 34CH 17 6Broad-spectrum aurora pillars 21Current Farside Activity 349Unspecified geomagnetic activity 63
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 | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 119.3 -4.7 |
| Last 30 days | 120.3 +3.4 |