Viewing archive of Tuesday, 19 September 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 | M |
|---|---|---|---|---|---|
| 143 4 | 1 -3 | C1.25 | M4.09 | 11 | 3 |
Sunspot regions
Region 13425 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 60 -20 | HSX | N24W88 | |
|
||||
Region 13429 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -5 | 80 30 | CAO | N12W67 | |
|
||||
Solar flares on this day | ||||
| C3.5 | ||||
Region 13433 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 90 20 | HSX | N28W25 | |
|
||||
Region 13435 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 280 | DKO | N09E42 | |
|
||||
Solar flares on this day | ||||
| M1.1 M1.8 C3.1 M4.0 C9.7 | ||||
Region 13436 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 -2 | 160 60 | DAI | N20W49 | |
|
||||
Solar flares on this day | ||||
| C2.8 C3.9 C5.0 C4.2 C2.8 C2.0 | ||||
Region 13437 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 -2 | 100 30 | DAO | S17W29 | |
|
||||
Solar flares on this day | ||||
| C2.1 | ||||
Region 13438 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 7 | 60 30 | CSI | N10E34 | |
|
||||
Solar flares on this day | ||||
| C2.8 | ||||
Region 13439 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -4 | 50 -10 | CAO | S24E43 | |
|
||||
Region 13440 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 70 10 | CSO | N17E60 | |
|
||||
Region 13441 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 20 | CRO | N09E11 | |
|
||||
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |