Viewing archive of Thursday, 4 September 2025 - 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 |
|---|---|---|---|---|---|
| 150 22 | 1 1 | C1.51 | M1.05 | 6 | 1 |
Sunspot regions
Region 14197 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 | 480 | FHI | S20W75 | |
|
||||
Solar flares on this day | ||||
| C2.9 | ||||
Region 14199 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -3 | 160 -10 | CSO | N03W62 | |
|
||||
Solar flares on this day | ||||
| C2.5 C2.1 | ||||
Region 14201 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 45 -5 | HSX | S23W61 | |
|
||||
Region 14202 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 1 | 70 -10 | CSO | S16W56 | |
|
||||
Region 14205 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 -30 | AXX | N17W14 | |
|
||||
Region 14206 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 100 20 | HSX | N08W10 | |
|
||||
Region 14207 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 17 11 | 390 90 | FHI | N29E12 | |
|
||||
Solar flares on this day | ||||
| C9.2 C2.8 M1.05 | ||||
Region 14210 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 1 | 140 | DSO | N09E28 | |
|
||||
Solar flares on this day | ||||
| C3.3 | ||||
Region 14211 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 150 -60 | HSX | S13E45 | |
|
||||
Solar flares on this day | ||||
| C3.4 C2.5 | ||||
Region 14212 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 15 | BXO | N11E07 | |
|
||||
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
AR4392 2AR4387 / AR4389 / AR4391 13AR 4384 8Solar cycle 25, solar maximum, is it over? 62Comet C/2026 A1 (MAPS) for the southern hemisphere 12
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 | 2026/03/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 78.5 +0.3 |
| Last 30 days | 54.2 -74.7 |