Viewing archive of Monday, 18 December 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 |
|---|---|---|---|---|
| 137 8 | 3 2 | C1.69 | C6.55 | 9 |
Sunspot regions
Region 13514 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 120 | DAC | N05W0* | |
|
||||
Solar flares on this day | ||||
| C2.1 | ||||
Region 13519 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -7 | 130 | DSI | S11W29 | |
|
||||
Solar flares on this day | ||||
| C2.2 C2.1 | ||||
Region 13520 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 40 | CSO | N10W0* | |
|
||||
Region 13521 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 5 | 50 20 | DAO | N11E34 | |
|
||||
Region 13523 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 | BXO | N22E38 | |
|
||||
Region 13524 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 -10 | AXX | N27E37 | |
|
||||
Solar flares on this day | ||||
| C6.0 | ||||
Region 13525 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -2 | 10 -10 | AXX | S08E16 | |
|
||||
Region 13526 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 30 10 | CAO | N15E59 | |
|
||||
Solar flares on this day | ||||
| C4.2 C4.0 | ||||
Region 13527 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 | 40 | CAO | S03W57 | |
|
||||
Region 13528 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 9 | 50 | DSI | N09E13 | |
|
||||
Solar flares on this day | ||||
| C6.5 C4.5 | ||||
Region 13529 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 | 60 | DSI | S20E53 | |
|
||||
All times in UTC
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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 | 106.4 +13.7 |