Viewing archive of Wednesday, 4 October 2023 - 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 |
|---|---|---|---|---|
| 151 1 | 1 | B7.48 | C3.04 | 6 |
Sunspot regions
Region 13448 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 90 | HSX | N03W47 | |
|
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Region 13450 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 13 -6 | 110 -30 | ESO | S33W23 | |
|
||||
Solar flares on this day | ||||
| C2.5 C1.7 | ||||
Region 13451 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 | 70 20 | DSO | N03E08 | |
|
||||
Region 13452 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 36 20 | 240 90 | EAC | S02E04 | |
|
||||
Solar flares on this day | ||||
| C1.8 C2.0 | ||||
Region 13453 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 50 | CAO | S02W32 | |
|
||||
Solar flares on this day | ||||
| C1.8 C3.0 | ||||
Region 13454 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 3 | 30 10 | CRO | S22E27 | |
|
||||
Region 13455 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 10 | AXX | N25E33 | |
|
||||
Region 13456 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 | AXX | S31W20 | |
|
||||
Region 13457 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 | HRX | S11E62 | |
|
||||
All times in UTC
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Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
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| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |