Sunspot region AR9641
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 2001/09/28 | 1 | 60 | HSX | S14E77 | |
| 2001/09/29 | 1 | 70 | HAX | S14E61 | |
| 2001/09/30 | 2 | 90 | CSO | S14E47 | |
| 2001/10/01 | 5 | 150 | CSO | S15E38 | |
| 2001/10/02 | 9 | 220 | EAO | S13E23 | |
| 2001/10/03 | 11 | 250 | DAO | S14E08 | |
| 2001/10/04 | 10 | 180 | CAO | S14W06 | |
| 2001/10/05 | 7 | 140 | CSO | S13W19 | |
| 2001/10/06 | 3 | 130 | CAO | S13W34 | |
| 2001/10/07 | 3 | 100 | HAX | S13W48 | |
| 2001/10/08 | 3 | 100 | HAX | S13W61 | |
| 2001/10/09 | 1 | 50 | HAX | S13W76 | |
| 2001/10/10 | 1 | 60 | HSX | S12W89 |
| C | M |
|---|---|
| 3 | 1 |
The top 4 solar flares from sunspot region 9641
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M1.57 | 2001/10/02 | 11:23 | 11:27 | 11:32 | |
| 2 | C5.28 | 2001/10/05 | 21:11 | 21:20 | 21:35 | |
| 3 | C2.76 | 2001/10/05 | 11:31 | 11:35 | 11:39 | |
| 4 | C2.75 | 2001/10/04 | 19:50 | 19:58 | 20:04 |
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
CME March 1 7Incoming & Unnumbered Active Regions 216Filaments and prominences 494Did ChatGPT Find a New Solar Physics Formula? 24AR4379/4380 13
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 | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 75.5 -37.1 |
| Last 30 days | 81.7 -39.4 |