Viewing archive of Thursday, 17 May 2001 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C | M |
|---|---|---|---|---|---|
| 137 12 | 1 1 | B8.14 | M1.73 | 16 | 3 |
Sunspot regions
Region 9451 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 110 -10 | HAX | S20W81 | |
Solar flares on this day | ||||
| C2.68 | ||||
Region 9454 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 22 -1 | 220 -60 | EAO | N13W08 | |
Solar flares on this day | ||||
| M1 M1.31 | ||||
Region 9455 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 28 6 | 140 -40 | FAI | S17W52 | |
Solar flares on this day | ||||
| C4 C2.79 C4.68 M1.73 | ||||
Region 9456 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -4 | 90 40 | DAO | N06W60 | |
Region 9458 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -1 | 30 -10 | DAO | S12W72 | |
Region 9461 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 2 | 90 80 | DAO | N16E63 | |
Solar flares on this day | ||||
| C5.85 C3.23 | ||||
All times in UTC
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
AR4374 11Space Weather Memes 793Feb 8-9 CMEs 24Do the high-resolution sunspot counts point to more complex sunspots? 59AR4366 1007
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 | X4.3 |
| Last M-flare | 2026/02/09 | M2.8 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 135.3 +22.7 |
| Last 30 days | 129.4 +28.1 |