Viewing archive of Sunday, 21 December 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 |
|---|---|---|---|---|---|
| 85 11 | 0 -4 | B6.76 | M1.31 | 13 | 1 |
Sunspot regions
Region 14311 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 4 | 20 10 | CRO | N04W55 | |
|
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Region 14312 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 | HSX | N18E19 | |
|
||||
Region 14315 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | N20E34 | |
|
||||
Solar flares on this day | ||||
| C1.3 | ||||
Region 14316 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 12 8 | 50 10 | DRI | S07E26 | |
|
||||
Solar flares on this day | ||||
| C1.3 C1.4 C2.6 M1.3 C3.9 C4.0 C3.1 C2.2 C2.0 | ||||
Region 14317 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 13 | 120 70 | CAO | N12E60 | |
|
||||
Solar flares on this day | ||||
| C1.8 C1.3 | ||||
All times in UTC
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/21 | Kp7+ (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 110 -14 |
| Last 30 days | 114.8 +6.7 |