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
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/08 | M1.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 162.7 +70.9 |
| Last 30 days | 108 +13.3 |