Viewing archive of Saturday, 4 October 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 |
|---|---|---|---|---|
| 137 -13 | 0 -2 | C1.45 | C5.5 | 11 |
Sunspot regions
Region 14230 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 200 | EAI | S10W93 | |
|
||||
Solar flares on this day | ||||
| C2.7 C3.0 | ||||
Region 14232 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 | 310 | DHI | N04W34 | |
|
||||
Solar flares on this day | ||||
| C3.5 | ||||
Region 14233 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -3 | 10 | HRX | N19W31 | |
|
||||
Region 14235 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 -10 | AXX | N27W33 | |
|
||||
Region 14236 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 17 4 | 320 | EKC | N10W43 | |
|
||||
Solar flares on this day | ||||
| C4.6 | ||||
Region 14238 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 100 | CSO | S14W98 | |
|
||||
Region 14241 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 -2 | 30 | DAI | N14E05 | |
|
||||
Solar flares on this day | ||||
| C3.4 C2.1 | ||||
Region 14242 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 80 60 | DAI | S11E13 | |
|
||||
Solar flares on this day | ||||
| C3.4 C2.7 C5.4 C3.2 | ||||
Region 14243 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 10 | BXO | N18E41 | |
|
||||
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| 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 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |